Updates to current formatting standards

spring-cloud-zookeeper-config/src/main/java/org/springframework/cloud/zookeeper/config/AbstractZookeeperPropertySource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,16 +17,18 @@
 package org.springframework.cloud.zookeeper.config;
 
 import org.apache.curator.framework.CuratorFramework;
+
 import org.springframework.core.env.EnumerablePropertySource;
 
 /**
- * A {@link EnumerablePropertySource} that has a notion of a context which is
- * the root folder in Zookeeper.
+ * A {@link EnumerablePropertySource} that has a notion of a context which is the root
+ * folder in Zookeeper.
  *
  * @author Spencer Gibb
  * @since 1.0.0
  */
-public abstract class AbstractZookeeperPropertySource extends EnumerablePropertySource<CuratorFramework> {
+public abstract class AbstractZookeeperPropertySource
+		extends EnumerablePropertySource<CuratorFramework> {
 
 	private String context;
 
@@ -45,4 +47,5 @@ public abstract class AbstractZookeeperPropertySource extends EnumerableProperty
 	public String getContext() {
 		return this.context;
 	}
+
 }

spring-cloud-zookeeper-config/src/main/java/org/springframework/cloud/zookeeper/config/ConfigWatcher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,13 +16,14 @@
 
 package org.springframework.cloud.zookeeper.config;
 
-import javax.annotation.PostConstruct;
 import java.io.Closeable;
 import java.nio.charset.Charset;
 import java.util.HashMap;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 
+import javax.annotation.PostConstruct;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.curator.framework.CuratorFramework;
@@ -30,6 +31,7 @@ import org.apache.curator.framework.recipes.cache.TreeCache;
 import org.apache.curator.framework.recipes.cache.TreeCacheEvent;
 import org.apache.curator.framework.recipes.cache.TreeCacheListener;
 import org.apache.zookeeper.KeeperException;
+
 import org.springframework.cloud.endpoint.event.RefreshEvent;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.context.ApplicationEventPublisherAware;
@@ -39,20 +41,25 @@ import static org.apache.curator.framework.recipes.cache.TreeCacheEvent.Type.NOD
 import static org.apache.curator.framework.recipes.cache.TreeCacheEvent.Type.NODE_UPDATED;
 
 /**
- * Class that registers a {@link TreeCache} for each context.
- * It publishes events upon element change in Zookeeper.
+ * Class that registers a {@link TreeCache} for each context. It publishes events upon
+ * element change in Zookeeper.
  *
  * @author Spencer Gibb
  * @since 1.0.0
  */
-public class ConfigWatcher implements Closeable, TreeCacheListener, ApplicationEventPublisherAware{
+public class ConfigWatcher
+		implements Closeable, TreeCacheListener, ApplicationEventPublisherAware {
 
 	private static final Log log = LogFactory.getLog(ConfigWatcher.class);
 
 	private AtomicBoolean running = new AtomicBoolean(false);
+
 	private List<String> contexts;
+
 	private CuratorFramework source;
+
 	private ApplicationEventPublisher publisher;
+
 	private HashMap<String, TreeCache> caches;
 
 	public ConfigWatcher(List<String> contexts, CuratorFramework source) {
@@ -80,9 +87,11 @@ public class ConfigWatcher implements Closeable, TreeCacheListener, ApplicationE
 					this.caches.put(context, cache);
 					// no race condition since ZookeeperAutoConfiguration.curatorFramework
 					// calls curator.blockUntilConnected
-				} catch (KeeperException.NoNodeException e) {
+				}
+				catch (KeeperException.NoNodeException e) {
 					// no node, ignore
-				} catch (Exception e) {
+				}
+				catch (Exception e) {
 					log.error("Error initializing listener for context " + context, e);
 				}
 			}
@@ -100,10 +109,13 @@ public class ConfigWatcher implements Closeable, TreeCacheListener, ApplicationE
 	}
 
 	@Override
-	public void childEvent(CuratorFramework client, TreeCacheEvent event) throws Exception {
+	public void childEvent(CuratorFramework client, TreeCacheEvent event)
+			throws Exception {
 		TreeCacheEvent.Type eventType = event.getType();
-		if (eventType == NODE_ADDED || eventType == NODE_REMOVED || eventType == NODE_UPDATED) {
-			this.publisher.publishEvent(new RefreshEvent(this, event, getEventDesc(event)));
+		if (eventType == NODE_ADDED || eventType == NODE_REMOVED
+				|| eventType == NODE_UPDATED) {
+			this.publisher
+					.publishEvent(new RefreshEvent(this, event, getEventDesc(event)));
 		}
 	}
 
@@ -117,4 +129,5 @@ public class ConfigWatcher implements Closeable, TreeCacheListener, ApplicationE
 		}
 		return out.toString();
 	}
+
 }

spring-cloud-zookeeper-config/src/main/java/org/springframework/cloud/zookeeper/config/ZookeeperConfigAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,6 +17,7 @@
 package org.springframework.cloud.zookeeper.config;
 
 import org.apache.curator.framework.CuratorFramework;
+
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.cloud.endpoint.RefreshEndpoint;
@@ -25,8 +26,8 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 /**
- * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration Auto-configuration}
- * that registers a Zookeeper configuration watcher.
+ * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration
+ * Auto-configuration} that registers a Zookeeper configuration watcher.
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -39,11 +40,14 @@ public class ZookeeperConfigAutoConfiguration {
 	@Configuration
 	@ConditionalOnClass(RefreshEndpoint.class)
 	protected static class ZkRefreshConfiguration {
+
 		@Bean
 		@ConditionalOnProperty(name = "spring.cloud.zookeeper.config.watcher.enabled", matchIfMissing = true)
 		public ConfigWatcher configWatcher(ZookeeperPropertySourceLocator locator,
 				CuratorFramework curator) {
 			return new ConfigWatcher(locator.getContexts(), curator);
 		}
+
 	}
+
 }

spring-cloud-zookeeper-config/src/main/java/org/springframework/cloud/zookeeper/config/ZookeeperConfigBootstrapConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,6 +17,7 @@
 package org.springframework.cloud.zookeeper.config;
 
 import org.apache.curator.framework.CuratorFramework;
+
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.cloud.zookeeper.ConditionalOnZookeeperEnabled;
 import org.springframework.cloud.zookeeper.ZookeeperAutoConfiguration;
@@ -25,7 +26,7 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
 
 /**
- * Bootstrap Configuration for Zookeeper Configuration
+ * Bootstrap Configuration for Zookeeper Configuration.
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -47,4 +48,5 @@ public class ZookeeperConfigBootstrapConfiguration {
 	public ZookeeperConfigProperties zookeeperConfigProperties() {
 		return new ZookeeperConfigProperties();
 	}
+
 }

spring-cloud-zookeeper-config/src/main/java/org/springframework/cloud/zookeeper/config/ZookeeperConfigProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,7 +16,8 @@
 
 package org.springframework.cloud.zookeeper.config;
 
-import org.hibernate.validator.constraints.NotEmpty;
+import javax.validation.constraints.NotEmpty;
+
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.validation.annotation.Validated;
 
@@ -25,27 +26,27 @@ import org.springframework.validation.annotation.Validated;
  *
  * @author Spencer Gibb
  * @since 1.0.0
- *
  * @see ZookeeperPropertySourceLocator
  */
 @Validated
 @ConfigurationProperties("spring.cloud.zookeeper.config")
 public class ZookeeperConfigProperties {
+
 	private boolean enabled = true;
 
 	/**
-	 * Root folder where the configuration for Zookeeper is kept
+	 * Root folder where the configuration for Zookeeper is kept.
 	 */
 	private String root = "config";
 
 	/**
-	 * The name of the default context
+	 * The name of the default context.
 	 */
 	@NotEmpty
 	private String defaultContext = "application";
 
 	/**
-	 * Separator for profile appended to the application name
+	 * Separator for profile appended to the application name.
 	 */
 	@NotEmpty
 	private String profileSeparator = ",";
@@ -94,4 +95,5 @@ public class ZookeeperConfigProperties {
 	public void setFailFast(boolean failFast) {
 		this.failFast = failFast;
 	}
+
 }

spring-cloud-zookeeper-config/src/main/java/org/springframework/cloud/zookeeper/config/ZookeeperPropertySource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,11 +26,12 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.zookeeper.KeeperException;
+
 import org.springframework.util.ReflectionUtils;
 
 /**
- * {@link org.springframework.core.env.PropertySource} that stores properties
- * from Zookeeper inside a map. Properties are loaded upon class initialization.
+ * {@link org.springframework.core.env.PropertySource} that stores properties from
+ * Zookeeper inside a map. Properties are loaded upon class initialization.
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -56,13 +57,15 @@ public class ZookeeperPropertySource extends AbstractZookeeperPropertySource {
 			byte[] bytes = null;
 			try {
 				bytes = this.getSource().getData().forPath(fullPath);
-			} catch (KeeperException e) {
+			}
+			catch (KeeperException e) {
 				if (e.code() != KeeperException.Code.NONODE) { // not found
 					throw e;
 				}
 			}
 			return bytes;
-		} catch (Exception exception) {
+		}
+		catch (Exception exception) {
 			ReflectionUtils.rethrowRuntimeException(exception);
 		}
 		return null;
@@ -92,15 +95,18 @@ public class ZookeeperPropertySource extends AbstractZookeeperPropertySource {
 					if (childPathChildren == null || childPathChildren.isEmpty()) {
 						registerKeyValue(childPath, "");
 					}
-				} else {
-					registerKeyValue(childPath, new String(bytes, Charset.forName("UTF-8")));
+				}
+				else {
+					registerKeyValue(childPath,
+							new String(bytes, Charset.forName("UTF-8")));
 				}
 
 				// Check children even if we have found a value for the current znode
 				findProperties(childPath, childPathChildren);
 			}
 			log.trace("leaving findProperties for path: " + path);
-		} catch (Exception exception) {
+		}
+		catch (Exception exception) {
 			ReflectionUtils.rethrowRuntimeException(exception);
 		}
 	}
@@ -114,7 +120,8 @@ public class ZookeeperPropertySource extends AbstractZookeeperPropertySource {
 		List<String> children = null;
 		try {
 			children = this.getSource().getChildren().forPath(path);
-		} catch (KeeperException e) {
+		}
+		catch (KeeperException e) {
 			if (e.code() != KeeperException.Code.NONODE) { // not found
 				throw e;
 			}

spring-cloud-zookeeper-config/src/main/java/org/springframework/cloud/zookeeper/config/ZookeeperPropertySourceLocator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,15 +16,17 @@
 
 package org.springframework.cloud.zookeeper.config;
 
-import javax.annotation.PreDestroy;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
+import javax.annotation.PreDestroy;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.curator.framework.CuratorFramework;
+
 import org.springframework.cloud.bootstrap.config.PropertySourceLocator;
 import org.springframework.core.env.CompositePropertySource;
 import org.springframework.core.env.ConfigurableEnvironment;
@@ -33,13 +35,17 @@ import org.springframework.core.env.PropertySource;
 import org.springframework.util.ReflectionUtils;
 
 /**
- * Zookeeper provides a <a href="http://zookeeper.apache.org/doc/current/zookeeperOver.html#sc_dataModelNameSpace">hierarchical namespace</a> that allows
- * clients to store arbitrary data, such as configuration data.  Spring Cloud Zookeeper Config is an alternative to the
- * <a href="https://github.com/spring-cloud/spring-cloud-config">Config Server and Client</a>.  Configuration is loaded into the Spring Environment during
- * the special "bootstrap" phase.  Configuration is stored in the {@code /config} namespace by default.  Multiple
- * {@code PropertySource} instances are created based on the application's name and the active profiles that mimicks the Spring Cloud Config
- * order of resolving properties.  For example, an application with the name "testApp" and with the "dev" profile will have the following property sources
- * created:
+ * Zookeeper provides a <a href=
+ * "http://zookeeper.apache.org/doc/current/zookeeperOver.html#sc_dataModelNameSpace">hierarchical
+ * namespace</a> that allows clients to store arbitrary data, such as configuration data.
+ * Spring Cloud Zookeeper Config is an alternative to the
+ * <a href="https://github.com/spring-cloud/spring-cloud-config">Config Server and
+ * Client</a>. Configuration is loaded into the Spring Environment during the special
+ * "bootstrap" phase. Configuration is stored in the {@code /config} namespace by default.
+ * Multiple {@code PropertySource} instances are created based on the application's name
+ * and the active profiles that mimicks the Spring Cloud Config order of resolving
+ * properties. For example, an application with the name "testApp" and with the "dev"
+ * profile will have the following property sources created:
  *
  * <pre>{@code
  * config/testApp,dev
@@ -48,11 +54,11 @@ import org.springframework.util.ReflectionUtils;
  * config/application
  * }</pre>
  *
- * </p>
- * The most specific property source is at the top, with the least specific at the
- * bottom.  Properties is the {@code config/application} namespace are applicable to all applications
- * using zookeeper for configuration.  Properties in the {@code config/testApp} namespace are only available
- * to the instances of the service named "testApp".
+ * The most specific property source is at the top, with the least specific at the bottom.
+ * Properties is the {@code config/application} namespace are applicable to all
+ * applications using zookeeper for configuration. Properties in the
+ * {@code config/testApp} namespace are only available to the instances of the service
+ * named "testApp".
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -65,9 +71,11 @@ public class ZookeeperPropertySourceLocator implements PropertySourceLocator {
 
 	private List<String> contexts;
 
-	private static final Log log = LogFactory.getLog(ZookeeperPropertySourceLocator.class);
+	private static final Log log = LogFactory
+			.getLog(ZookeeperPropertySourceLocator.class);
 
-	public ZookeeperPropertySourceLocator(CuratorFramework curator, ZookeeperConfigProperties properties) {
+	public ZookeeperPropertySourceLocator(CuratorFramework curator,
+			ZookeeperConfigProperties properties) {
 		this.curator = curator;
 		this.properties = properties;
 	}
@@ -84,7 +92,8 @@ public class ZookeeperPropertySourceLocator implements PropertySourceLocator {
 			if (appName == null) {
 				// use default "application" (which config client does)
 				appName = "application";
-				log.warn("spring.application.name is not set. Using default of 'application'");
+				log.warn(
+						"spring.application.name is not set. Using default of 'application'");
 			}
 			List<String> profiles = Arrays.asList(env.getActiveProfiles());
 
@@ -112,11 +121,14 @@ public class ZookeeperPropertySourceLocator implements PropertySourceLocator {
 					PropertySource propertySource = create(propertySourceContext);
 					composite.addPropertySource(propertySource);
 					// TODO: howto call close when /refresh
-				} catch (Exception e) {
+				}
+				catch (Exception e) {
 					if (this.properties.isFailFast()) {
 						ReflectionUtils.rethrowRuntimeException(e);
-					} else {
-						log.warn("Unable to load zookeeper config from " + propertySourceContext, e);
+					}
+					else {
+						log.warn("Unable to load zookeeper config from "
+								+ propertySourceContext, e);
 					}
 				}
 			}
@@ -140,4 +152,5 @@ public class ZookeeperPropertySourceLocator implements PropertySourceLocator {
 			contexts.add(baseContext + this.properties.getProfileSeparator() + profile);
 		}
 	}
+
 }

spring-cloud-zookeeper-config/src/test/java/org/springframework/cloud/zookeeper/config/ZookeeperConfigAutoConfigurationTests.java

@@ -1,79 +1,93 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.config;
 
+import java.net.ConnectException;
 
-import org.junit.*;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
 import org.junit.rules.ExpectedException;
+
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 import org.springframework.boot.WebApplicationType;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.context.ConfigurableApplicationContext;
 
-import java.net.ConnectException;
-
 /**
  * @author Cesar Aguilera
  */
 public class ZookeeperConfigAutoConfigurationTests {
 
-    @Rule
-    public ExpectedException expectedException;
+	@Rule
+	public ExpectedException expectedException;
 
-    @Before
-    public void setUp() throws Exception {
-        expectedException = ExpectedException.none();
-        // makes Curator fail faster, otherwise it takes 15 seconds to trigger a retry
-        System.setProperty("curator-default-connection-timeout", "0");
-    }
+	@Before
+	public void setUp() throws Exception {
+		expectedException = ExpectedException.none();
+		// makes Curator fail faster, otherwise it takes 15 seconds to trigger a retry
+		System.setProperty("curator-default-connection-timeout", "0");
+	}
 
-    @After
-    public void tearDown() throws Exception {
-        System.clearProperty("curator-default-connection-timeout");
-    }
+	@After
+	public void tearDown() throws Exception {
+		System.clearProperty("curator-default-connection-timeout");
+	}
 
-    @Test(expected = NoSuchBeanDefinitionException.class)
-    public void testConfigEnabledFalseDoesNotLoadZookeeperConfigAutoConfiguration() throws Exception {
-        ConfigurableApplicationContext context = new SpringApplicationBuilder()
-                .sources(Config.class)
-                .web(WebApplicationType.NONE)
-                .run(
-                        "--spring.application.name=testZookeeperConfigEnabledSetToFalse",
-                        "--spring.jmx.default-domain=testZookeeperConfigEnabledSetToFalse",
-                        "--spring.cloud.zookeeper.config.connectString=localhost:2188",
-                        "--spring.cloud.zookeeper.baseSleepTimeMs=0",
-                        "--spring.cloud.zookeeper.maxRetries=0",
-                        "--spring.cloud.zookeeper.maxSleepMs=0",
-                        "--spring.cloud.zookeeper.blockUntilConnectedWait=0",
-                        "--spring.cloud.zookeeper.config.failFast=false",
-                        "--spring.cloud.zookeeper.config.enabled=false"
-                );
+	@Test(expected = NoSuchBeanDefinitionException.class)
+	public void testConfigEnabledFalseDoesNotLoadZookeeperConfigAutoConfiguration()
+			throws Exception {
+		ConfigurableApplicationContext context = new SpringApplicationBuilder()
+				.sources(Config.class).web(WebApplicationType.NONE)
+				.run("--spring.application.name=testZookeeperConfigEnabledSetToFalse",
+						"--spring.jmx.default-domain=testZookeeperConfigEnabledSetToFalse",
+						"--spring.cloud.zookeeper.config.connectString=localhost:2188",
+						"--spring.cloud.zookeeper.baseSleepTimeMs=0",
+						"--spring.cloud.zookeeper.maxRetries=0",
+						"--spring.cloud.zookeeper.maxSleepMs=0",
+						"--spring.cloud.zookeeper.blockUntilConnectedWait=0",
+						"--spring.cloud.zookeeper.config.failFast=false",
+						"--spring.cloud.zookeeper.config.enabled=false");
 
+		context.getBean(ZookeeperConfigAutoConfiguration.class);
+	}
 
-        context.getBean(ZookeeperConfigAutoConfiguration.class);
-    }
+	@Test
+	public void testConfigEnabledTrueLoadsZookeeperConfigAutoConfiguration()
+			throws Exception {
+		expectedException.expect(ConnectException.class);
 
+		new SpringApplicationBuilder().sources(Config.class).web(WebApplicationType.NONE)
+				.run("--spring.application.name=testZookeeperConfigEnabledSetToTrue",
+						"--spring.jmx.default-domain=testZookeeperConfigEnabledSetToTrue",
+						"--spring.cloud.zookeeper.config.connectString=localhost:2188",
+						"--spring.cloud.zookeeper.baseSleepTimeMs=0",
+						"--spring.cloud.zookeeper.maxRetries=0",
+						"--spring.cloud.zookeeper.maxSleepMs=0",
+						"--spring.cloud.zookeeper.blockUntilConnectedWait=0",
+						"--spring.cloud.zookeeper.config.failFast=false",
+						"--spring.cloud.zookeeper.config.enabled=true");
+	}
 
-    @Test
-    public void testConfigEnabledTrueLoadsZookeeperConfigAutoConfiguration() throws Exception {
-        expectedException.expect(ConnectException.class);
+	@SpringBootApplication
+	static class Config {
 
-        new SpringApplicationBuilder()
-                .sources(Config.class)
-                .web(WebApplicationType.NONE)
-                .run(
-                        "--spring.application.name=testZookeeperConfigEnabledSetToTrue",
-                        "--spring.jmx.default-domain=testZookeeperConfigEnabledSetToTrue",
-                        "--spring.cloud.zookeeper.config.connectString=localhost:2188",
-                        "--spring.cloud.zookeeper.baseSleepTimeMs=0",
-                        "--spring.cloud.zookeeper.maxRetries=0",
-                        "--spring.cloud.zookeeper.maxSleepMs=0",
-                        "--spring.cloud.zookeeper.blockUntilConnectedWait=0",
-                        "--spring.cloud.zookeeper.config.failFast=false",
-                        "--spring.cloud.zookeeper.config.enabled=true"
-                );
-    }
+	}
 
-    @SpringBootApplication
-    static class Config {
-    }
 }

spring-cloud-zookeeper-config/src/test/java/org/springframework/cloud/zookeeper/config/ZookeeperPropertySourceLocatorFailFastTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,6 +21,7 @@ import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
+
 import org.springframework.boot.WebApplicationType;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.builder.SpringApplicationBuilder;
@@ -29,12 +30,14 @@ import org.springframework.boot.builder.SpringApplicationBuilder;
  * @author Enrique Recarte Llorens
  */
 public class ZookeeperPropertySourceLocatorFailFastTests {
+
 	@Rule
 	public ExpectedException expectedException = ExpectedException.none();
 
 	@Before
 	public void setUp() throws Exception {
-		// This system property makes Curator fail faster, otherwise it takes 15 seconds to trigger a retry
+		// This system property makes Curator fail faster, otherwise it takes 15 seconds
+		// to trigger a retry
 		System.setProperty("curator-default-connection-timeout", "0");
 	}
 
@@ -45,39 +48,33 @@ public class ZookeeperPropertySourceLocatorFailFastTests {
 
 	@Test
 	public void testFailFastFalseLoadsTheApplicationContext() throws Exception {
-		new SpringApplicationBuilder()
-			.sources(Config.class)
-			.web(WebApplicationType.NONE)
-			.run(
-				"--spring.application.name=testZookeeperPropertySourceLocatorFailFast",
-				"--spring.cloud.zookeeper.config.connectString=localhost:2188",
-				"--spring.cloud.zookeeper.baseSleepTimeMs=0",
-				"--spring.cloud.zookeeper.maxRetries=0",
-				"--spring.cloud.zookeeper.maxSleepMs=0",
-				"--spring.cloud.zookeeper.blockUntilConnectedWait=0",
-				"--spring.cloud.zookeeper.config.failFast=false"
-			);
+		new SpringApplicationBuilder().sources(Config.class).web(WebApplicationType.NONE)
+				.run("--spring.application.name=testZookeeperPropertySourceLocatorFailFast",
+						"--spring.cloud.zookeeper.config.connectString=localhost:2188",
+						"--spring.cloud.zookeeper.baseSleepTimeMs=0",
+						"--spring.cloud.zookeeper.maxRetries=0",
+						"--spring.cloud.zookeeper.maxSleepMs=0",
+						"--spring.cloud.zookeeper.blockUntilConnectedWait=0",
+						"--spring.cloud.zookeeper.config.failFast=false");
 	}
 
 	@Test
 	public void testFailFastTrueDoesNotLoadTheApplicationContext() throws Exception {
 		expectedException.expect(Exception.class);
 
-		new SpringApplicationBuilder()
-			.sources(Config.class)
-			.web(WebApplicationType.NONE)
-			.run(
-				"--spring.application.name=testZookeeperPropertySourceLocatorFailFast",
-				"--spring.cloud.zookeeper.config.connectString=localhost:2188",
-				"--spring.cloud.zookeeper.baseSleepTimeMs=0",
-				"--spring.cloud.zookeeper.maxRetries=0",
-				"--spring.cloud.zookeeper.maxSleepMs=0",
-				"--spring.cloud.zookeeper.blockUntilConnectedWait=0",
-				"--spring.cloud.zookeeper.config.failFast=true"
-			);
+		new SpringApplicationBuilder().sources(Config.class).web(WebApplicationType.NONE)
+				.run("--spring.application.name=testZookeeperPropertySourceLocatorFailFast",
+						"--spring.cloud.zookeeper.config.connectString=localhost:2188",
+						"--spring.cloud.zookeeper.baseSleepTimeMs=0",
+						"--spring.cloud.zookeeper.maxRetries=0",
+						"--spring.cloud.zookeeper.maxSleepMs=0",
+						"--spring.cloud.zookeeper.blockUntilConnectedWait=0",
+						"--spring.cloud.zookeeper.config.failFast=true");
 	}
 
 	@SpringBootApplication
 	static class Config {
+
 	}
-}
+
+}

spring-cloud-zookeeper-config/src/test/java/org/springframework/cloud/zookeeper/config/ZookeeperPropertySourceLocatorNoApplicationNameTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,9 +19,7 @@ package org.springframework.cloud.zookeeper.config;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.api.GetChildrenBuilder;
 import org.junit.Test;
-import org.mockito.Mockito;
-import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.context.annotation.Configuration;
+
 import org.springframework.mock.env.MockEnvironment;
 
 import static org.mockito.Mockito.mock;
@@ -36,7 +34,9 @@ public class ZookeeperPropertySourceLocatorNoApplicationNameTests {
 	public void defaultSpringApplicationNameWorks() {
 		CuratorFramework curator = mock(CuratorFramework.class);
 		when(curator.getChildren()).thenReturn(mock(GetChildrenBuilder.class));
-		ZookeeperPropertySourceLocator locator = new ZookeeperPropertySourceLocator(curator, new ZookeeperConfigProperties());
+		ZookeeperPropertySourceLocator locator = new ZookeeperPropertySourceLocator(
+				curator, new ZookeeperConfigProperties());
 		locator.locate(new MockEnvironment());
 	}
+
 }

spring-cloud-zookeeper-config/src/test/java/org/springframework/cloud/zookeeper/config/ZookeeperPropertySourceLocatorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,66 +45,54 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.core.env.ConfigurableEnvironment;
 import org.springframework.util.SocketUtils;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.hamcrest.Matchers.is;
-import static org.hamcrest.Matchers.isEmptyString;
-import static org.junit.Assert.assertThat;
+import static org.assertj.core.api.Assertions.assertThat;
 
 /**
  * @author Spencer Gibb
  */
 public class ZookeeperPropertySourceLocatorTests {
 
-	private static final Log log = LogFactory.getLog(ZookeeperPropertySourceLocatorTests.class);
+	private static final Log log = LogFactory
+			.getLog(ZookeeperPropertySourceLocatorTests.class);
 
 	public static final String PREFIX = "test__config__";
+
 	public static final String ROOT = "/" + PREFIX + UUID.randomUUID();
+
 	public static final String CONTEXT = ROOT + "/application/";
 
 	public static final String KEY_BASIC = "testProp";
+
 	public static final String KEY_BASIC_PATH = CONTEXT + KEY_BASIC;
+
 	public static final String VAL_BASIC = "testPropVal";
 
 	public static final String KEY_WITH_DOT = "testProp.dot";
+
 	public static final String KEY_WITH_DOT_PATH = CONTEXT + KEY_WITH_DOT;
+
 	public static final String VAL_WITH_DOT = "withDotVal";
 
 	public static final String KEY_NESTED = "testProp.nested";
+
 	public static final String KEY_NESTED_PATH = CONTEXT + KEY_NESTED.replace('.', '/');
+
 	public static final String VAL_NESTED = "nestedVal";
 
 	public static final String KEY_WITHOUT_VALUE = "testProp.novalue";
+
 	public static final String KEY_WITHOUT_VALUE_PATH = CONTEXT + KEY_WITHOUT_VALUE;
 
 	private ConfigurableEnvironment environment;
+
 	private ConfigurableApplicationContext context;
+
 	private TestingServer testingServer;
+
 	private CuratorFramework curator;
+
 	private ZookeeperConfigProperties properties;
 
-	@Configuration
-	@EnableAutoConfiguration
-	static class Config implements ApplicationListener<EnvironmentChangeEvent> {
-		@Bean
-		public CountDownLatch countDownLatch() {
-			return new CountDownLatch(1);
-		}
-
-		@Bean
-		public ContextRefresher contextRefresher(ConfigurableApplicationContext context,
-				RefreshScope scope) {
-			return new ContextRefresher(context, scope);
-		}
-
-		@Override
-		public void onApplicationEvent(EnvironmentChangeEvent event) {
-			log.debug("Event keys: " + event.getKeys());
-			if (event.getKeys().contains(KEY_BASIC)) {
-				countDownLatch().countDown();
-			}
-		}
-	}
-
 	@Before
 	public void setup() throws Exception {
 		int port = SocketUtils.findAvailableTcpPort();
@@ -133,10 +121,12 @@ public class ZookeeperPropertySourceLocatorTests {
 		this.curator.close();
 		System.out.println(create);
 
-		this.context = new SpringApplicationBuilder(Config.class).web(WebApplicationType.NONE).run(
-				"--spring.cloud.zookeeper.connectString=" + connectString,
-				"--spring.application.name=testZkPropertySource", "--logging.level.org.springframework.cloud.zookeeper=DEBUG",
-				"--spring.cloud.zookeeper.config.root=" + ROOT);
+		this.context = new SpringApplicationBuilder(Config.class)
+				.web(WebApplicationType.NONE)
+				.run("--spring.cloud.zookeeper.connectString=" + connectString,
+						"--spring.application.name=testZkPropertySource",
+						"--logging.level.org.springframework.cloud.zookeeper=DEBUG",
+						"--spring.cloud.zookeeper.config.root=" + ROOT);
 
 		this.curator = this.context.getBean(CuratorFramework.class);
 		this.properties = this.context.getBean(ZookeeperConfigProperties.class);
@@ -168,31 +158,57 @@ public class ZookeeperPropertySourceLocatorTests {
 	@Test
 	public void checkKeyValues() throws Exception {
 		String propValue = this.environment.getProperty(KEY_BASIC);
-		assertThat(KEY_BASIC + " was wrong", propValue, is(equalTo(VAL_BASIC)));
+		assertThat(propValue).as(KEY_BASIC + " was wrong").isEqualTo(VAL_BASIC);
 
 		propValue = this.environment.getProperty(KEY_NESTED);
-		assertThat(VAL_NESTED + " was wrong", propValue, is(equalTo(VAL_NESTED)));
+		assertThat(propValue).as(VAL_NESTED + " was wrong").isEqualTo(VAL_NESTED);
 
 		propValue = this.environment.getProperty(KEY_WITH_DOT);
-		assertThat(VAL_WITH_DOT + " was wrong", propValue, is(equalTo(VAL_WITH_DOT)));
+		assertThat(propValue).as(VAL_WITH_DOT + " was wrong").isEqualTo(VAL_WITH_DOT);
 
 		propValue = this.environment.getProperty(KEY_WITHOUT_VALUE);
-		assertThat(KEY_WITHOUT_VALUE + " was wrong", propValue, is(isEmptyString()));
+		assertThat(propValue).as(KEY_WITHOUT_VALUE + " was wrong").isEmpty();
 	}
 
 	@Test
 	public void propertyLoadedAndUpdated() throws Exception {
 		String testProp = this.environment.getProperty(KEY_BASIC);
-		assertThat("testProp was wrong", testProp, is(equalTo(VAL_BASIC)));
+		assertThat(testProp).as("testProp was wrong").isEqualTo(VAL_BASIC);
 
 		this.curator.setData().forPath(KEY_BASIC_PATH, "testPropValUpdate".getBytes());
 
 		CountDownLatch latch = this.context.getBean(CountDownLatch.class);
 		boolean receivedEvent = latch.await(15, TimeUnit.SECONDS);
-		assertThat("listener didn't receive event", receivedEvent, is(true));
+		assertThat(receivedEvent).as("listener didn't receive event").isTrue();
 
 		testProp = this.environment.getProperty(KEY_BASIC);
-		assertThat("testProp was wrong after update", testProp,
-				is(equalTo("testPropValUpdate")));
+		assertThat(testProp).as("testProp was wrong after update")
+				.isEqualTo("testPropValUpdate");
 	}
+
+	@Configuration
+	@EnableAutoConfiguration
+	static class Config implements ApplicationListener<EnvironmentChangeEvent> {
+
+		@Bean
+		public CountDownLatch countDownLatch() {
+			return new CountDownLatch(1);
+		}
+
+		@Bean
+		public ContextRefresher contextRefresher(ConfigurableApplicationContext context,
+				RefreshScope scope) {
+			return new ContextRefresher(context, scope);
+		}
+
+		@Override
+		public void onApplicationEvent(EnvironmentChangeEvent event) {
+			log.debug("Event keys: " + event.getKeys());
+			if (event.getKeys().contains(KEY_BASIC)) {
+				countDownLatch().countDown();
+			}
+		}
+
+	}
+
 }

spring-cloud-zookeeper-core/src/main/java/org/springframework/cloud/zookeeper/ConditionalOnZookeeperEnabled.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,12 +24,14 @@ import java.lang.annotation.Target;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 
 /**
- * Wrapper annotation to enable Zookeeper
+ * Wrapper annotation to enable Zookeeper.
  *
+ * @author Marcin Grzejszczak
  * @since 1.1.0
  */
 @Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE, ElementType.METHOD})
+@Target({ ElementType.TYPE, ElementType.METHOD })
 @ConditionalOnProperty(value = "spring.cloud.zookeeper.enabled", matchIfMissing = true)
 public @interface ConditionalOnZookeeperEnabled {
+
 }

spring-cloud-zookeeper-core/src/main/java/org/springframework/cloud/zookeeper/ZookeeperAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@ import org.apache.curator.ensemble.EnsembleProvider;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.CuratorFrameworkFactory;
 import org.apache.curator.retry.ExponentialBackoffRetry;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
@@ -30,8 +31,8 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 /**
- * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration Auto-configuration}
- * that sets up Zookeeper discovery.
+ * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration
+ * Auto-configuration} that sets up Zookeeper discovery.
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -52,20 +53,24 @@ public class ZookeeperAutoConfiguration {
 		return new ZookeeperProperties();
 	}
 
-
 	@Bean(destroyMethod = "close")
 	@ConditionalOnMissingBean
-	public CuratorFramework curatorFramework(RetryPolicy retryPolicy, ZookeeperProperties properties) throws Exception {
+	public CuratorFramework curatorFramework(RetryPolicy retryPolicy,
+			ZookeeperProperties properties) throws Exception {
 		CuratorFrameworkFactory.Builder builder = CuratorFrameworkFactory.builder();
 		if (this.ensembleProvider != null) {
 			builder.ensembleProvider(this.ensembleProvider);
-		} else {
+		}
+		else {
 			builder.connectString(properties.getConnectString());
 		}
 		CuratorFramework curator = builder.retryPolicy(retryPolicy).build();
 		curator.start();
-		log.trace("blocking until connected to zookeeper for " + properties.getBlockUntilConnectedWait() + properties.getBlockUntilConnectedUnit());
-		curator.blockUntilConnected(properties.getBlockUntilConnectedWait(), properties.getBlockUntilConnectedUnit());
+		log.trace("blocking until connected to zookeeper for "
+				+ properties.getBlockUntilConnectedWait()
+				+ properties.getBlockUntilConnectedUnit());
+		curator.blockUntilConnected(properties.getBlockUntilConnectedWait(),
+				properties.getBlockUntilConnectedUnit());
 		log.trace("connected to zookeeper");
 		return curator;
 	}
@@ -74,7 +79,7 @@ public class ZookeeperAutoConfiguration {
 	@ConditionalOnMissingBean
 	public RetryPolicy exponentialBackoffRetry(ZookeeperProperties properties) {
 		return new ExponentialBackoffRetry(properties.getBaseSleepTimeMs(),
-				properties.getMaxRetries(),
-				properties.getMaxSleepMs());
+				properties.getMaxRetries(), properties.getMaxSleepMs());
 	}
+
 }

spring-cloud-zookeeper-core/src/main/java/org/springframework/cloud/zookeeper/ZookeeperHealthAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2018 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,9 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper;
 
 import org.apache.curator.framework.CuratorFramework;
+
 import org.springframework.boot.actuate.autoconfigure.health.ConditionalOnEnabledHealthIndicator;
 import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
@@ -28,8 +30,8 @@ import org.springframework.context.annotation.Configuration;
 /**
  * Auto {@link Configuration} for adding a Zookeeper health endpoint to actuator if
  * required.
- * 
- * @author tgianos
+ *
+ * @author Tom Gianos
  * @since 2.0.1
  */
 @Configuration
@@ -41,7 +43,6 @@ public class ZookeeperHealthAutoConfiguration {
 	/**
 	 * If there is an active curator, if the zookeeper health endpoint is enabled and if a
 	 * health indicator hasn't already been added by a user add one.
-	 * 
 	 * @param curator The curator connection to zookeeper to use
 	 * @return An instance of {@link ZookeeperHealthIndicator} to add to actuator health
 	 * report
@@ -53,4 +54,5 @@ public class ZookeeperHealthAutoConfiguration {
 	public ZookeeperHealthIndicator zookeeperHealthIndicator(CuratorFramework curator) {
 		return new ZookeeperHealthIndicator(curator);
 	}
+
 }

spring-cloud-zookeeper-core/src/main/java/org/springframework/cloud/zookeeper/ZookeeperHealthIndicator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@ package org.springframework.cloud.zookeeper;
 
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.imps.CuratorFrameworkState;
+
 import org.springframework.boot.actuate.health.AbstractHealthIndicator;
 import org.springframework.boot.actuate.health.Health;
 
@@ -29,6 +30,7 @@ import org.springframework.boot.actuate.health.Health;
  * @since 1.0.0
  */
 public class ZookeeperHealthIndicator extends AbstractHealthIndicator {
+
 	private final CuratorFramework curator;
 
 	public ZookeeperHealthIndicator(CuratorFramework curator) {
@@ -56,4 +58,5 @@ public class ZookeeperHealthIndicator extends AbstractHealthIndicator {
 			builder.down(e);
 		}
 	}
+
 }

spring-cloud-zookeeper-core/src/main/java/org/springframework/cloud/zookeeper/ZookeeperProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,14 +16,15 @@
 
 package org.springframework.cloud.zookeeper;
 
-import javax.validation.constraints.NotNull;
 import java.util.concurrent.TimeUnit;
 
+import javax.validation.constraints.NotNull;
+
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.validation.annotation.Validated;
 
 /**
- * Properties related to connecting to Zookeeper
+ * Properties related to connecting to Zookeeper.
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -33,38 +34,38 @@ import org.springframework.validation.annotation.Validated;
 public class ZookeeperProperties {
 
 	/**
-	 * Connection string to the Zookeeper cluster
+	 * Connection string to the Zookeeper cluster.
 	 */
 	@NotNull
 	private String connectString = "localhost:2181";
 
 	/**
-	 * Is Zookeeper enabled
+	 * Is Zookeeper enabled.
 	 */
 	private boolean enabled = true;
 
 	/**
-	 * Initial amount of time to wait between retries
+	 * Initial amount of time to wait between retries.
 	 */
 	private Integer baseSleepTimeMs = 50;
 
 	/**
-	 * Max number of times to retry
+	 * Max number of times to retry.
 	 */
 	private Integer maxRetries = 10;
 
 	/**
-	 * Max time in ms to sleep on each retry
+	 * Max time in ms to sleep on each retry.
 	 */
 	private Integer maxSleepMs = 500;
 
 	/**
-	 * Wait time to block on connection to Zookeeper
+	 * Wait time to block on connection to Zookeeper.
 	 */
 	private Integer blockUntilConnectedWait = 10;
 
 	/**
-	 * The unit of time related to blocking on connection to Zookeeper
+	 * The unit of time related to blocking on connection to Zookeeper.
 	 */
 	private TimeUnit blockUntilConnectedUnit = TimeUnit.SECONDS;
 
@@ -123,4 +124,5 @@ public class ZookeeperProperties {
 	public void setBlockUntilConnectedUnit(TimeUnit blockUntilConnectedUnit) {
 		this.blockUntilConnectedUnit = blockUntilConnectedUnit;
 	}
+
 }

spring-cloud-zookeeper-core/src/test/java/org/springframework/cloud/zookeeper/ZookeeperAutoConfigurationEnsembleTests.java

@@ -1,7 +1,20 @@
-package org.springframework.cloud.zookeeper;
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
+package org.springframework.cloud.zookeeper;
 
 import org.apache.curator.ensemble.EnsembleProvider;
 import org.apache.curator.ensemble.fixed.FixedEnsembleProvider;
@@ -9,26 +22,35 @@ import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.test.TestingServer;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
 /**
  * @author Konrad Kamil Dobrzyński
  */
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = { ZookeeperAutoConfigurationEnsembleTests.TestConfig.class, ZookeeperAutoConfiguration.class })
+@ContextConfiguration(classes = {
+		ZookeeperAutoConfigurationEnsembleTests.TestConfig.class,
+		ZookeeperAutoConfiguration.class })
 public class ZookeeperAutoConfigurationEnsembleTests {
 
-	@Autowired(required = false) CuratorFramework curator;
+	@Autowired(required = false)
+	CuratorFramework curator;
+
+	@Autowired
+	TestingServer testingServer;
 
-	@Autowired TestingServer testingServer;
-	
 	@Test
 	public void should_successfully_inject_Curator_with_ensemble_connection_string() {
-		assertEquals(testingServer.getConnectString(), curator.getZookeeperClient().getCurrentConnectionString());
-		assertNotEquals(TestConfig.DUMMY_CONNECTION_STRING, curator.getZookeeperClient().getCurrentConnectionString());
+		assertThat(curator.getZookeeperClient().getCurrentConnectionString())
+				.isEqualTo(testingServer.getConnectString());
+		assertThat(curator.getZookeeperClient().getCurrentConnectionString())
+				.isNotEqualTo(TestConfig.DUMMY_CONNECTION_STRING);
 	}
 
 	static class TestConfig {
@@ -36,7 +58,7 @@ public class ZookeeperAutoConfigurationEnsembleTests {
 		static final String DUMMY_CONNECTION_STRING = "dummy-connection-string:2111";
 
 		@Bean
-		EnsembleProvider ensembleProvider(TestingServer testingServer){
+		EnsembleProvider ensembleProvider(TestingServer testingServer) {
 			return new FixedEnsembleProvider(testingServer.getConnectString());
 		}
 
@@ -47,8 +69,11 @@ public class ZookeeperAutoConfigurationEnsembleTests {
 			return properties;
 		}
 
-		@Bean(destroyMethod = "close") TestingServer testingServer() throws Exception {
+		@Bean(destroyMethod = "close")
+		TestingServer testingServer() throws Exception {
 			return new TestingServer();
 		}
+
 	}
+
 }

spring-cloud-zookeeper-core/src/test/java/org/springframework/cloud/zookeeper/ZookeeperAutoConfigurationTests.java

@@ -1,40 +1,64 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper;
 
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.test.TestingServer;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
-import static org.junit.Assert.assertNotNull;
+import static org.assertj.core.api.Assertions.assertThat;
 
 /**
  * @author Marcin Grzejszczak
  */
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = { ZookeeperAutoConfigurationTests.TestConfig.class, ZookeeperAutoConfiguration.class })
+@ContextConfiguration(classes = { ZookeeperAutoConfigurationTests.TestConfig.class,
+		ZookeeperAutoConfiguration.class })
 public class ZookeeperAutoConfigurationTests {
 
-	@Autowired(required = false) CuratorFramework curator;
-	
+	@Autowired(required = false)
+	CuratorFramework curator;
+
 	@Test
 	public void should_successfully_inject_Curator_as_a_Spring_bean() {
-		assertNotNull(this.curator);
+		assertThat(this.curator).isNotNull();
 	}
 
 	static class TestConfig {
+
 		@Bean
-		ZookeeperProperties zookeeperProperties(TestingServer testingServer) throws Exception {
+		ZookeeperProperties zookeeperProperties(TestingServer testingServer)
+				throws Exception {
 			ZookeeperProperties properties = new ZookeeperProperties();
 			properties.setConnectString(testingServer.getConnectString());
 			return properties;
 		}
 
-		@Bean(destroyMethod = "close") TestingServer testingServer() throws Exception {
+		@Bean(destroyMethod = "close")
+		TestingServer testingServer() throws Exception {
 			return new TestingServer();
 		}
+
 	}
+
 }

spring-cloud-zookeeper-core/src/test/java/org/springframework/cloud/zookeeper/ZookeeperHealthAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2018 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,22 +13,25 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper;
 
 import org.apache.curator.framework.CuratorFramework;
 import org.assertj.core.api.Assertions;
 import org.junit.Test;
+
 import org.springframework.boot.autoconfigure.AutoConfigurations;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.context.annotation.Bean;
 
 /**
  * Tests for {@link ZookeeperHealthAutoConfiguration}.
- * 
- * @author tgianos
+ *
+ * @author Tom Gianos
  * @since 2.0.1
  */
 public class ZookeeperHealthAutoConfigurationTests {
+
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
 			.withConfiguration(AutoConfigurations.of(ZookeeperAutoConfiguration.class,
 					ZookeeperHealthAutoConfiguration.class))
@@ -61,10 +64,13 @@ public class ZookeeperHealthAutoConfigurationTests {
 	}
 
 	static class HealthIndicatorCustomConfig {
+
 		@Bean
 		ZookeeperHealthIndicator customZookeeperHealthIndicator(
 				CuratorFramework curatorFramework) {
 			return new ZookeeperHealthIndicator(curatorFramework);
 		}
+
 	}
+
 }

spring-cloud-zookeeper-dependencies/pom.xml

@@ -15,6 +15,9 @@
 	<description>Spring Cloud Zookeeper Dependencies</description>
 	<properties>
 		<curator.version>4.0.1</curator.version>
+		<maven-checkstyle-plugin.failsOnError>true</maven-checkstyle-plugin.failsOnError>
+		<maven-checkstyle-plugin.failsOnViolation>true</maven-checkstyle-plugin.failsOnViolation>
+		<maven-checkstyle-plugin.includeTestSourceDirectory>true</maven-checkstyle-plugin.includeTestSourceDirectory>
 	</properties>
 	<dependencyManagement>
 		<dependencies>
@@ -116,6 +119,27 @@
 			</dependency>
 		</dependencies>
 	</dependencyManagement>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-checkstyle-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<groupId>io.spring.javaformat</groupId>
+				<artifactId>spring-javaformat-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+	<reporting>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-checkstyle-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</reporting>
 	<profiles>
 		<profile>
 			<id>spring</id>

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ConditionalOnRibbonZookeeper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,12 +24,14 @@ import java.lang.annotation.Target;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 
 /**
- * Wrapper annotation to enable Ribbon for Zookeeper
+ * Wrapper annotation to enable Ribbon for Zookeeper.
  *
- * @since 1.0.0
+ * @author Marcin Grzejszczak
+ * * @since 1.0.0
  */
 @Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE, ElementType.METHOD})
+@Target({ ElementType.TYPE, ElementType.METHOD })
 @ConditionalOnProperty(value = "ribbon.zookeeper.enabled", matchIfMissing = true)
 public @interface ConditionalOnRibbonZookeeper {
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ConditionalOnZookeeperDiscoveryEnabled.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,13 +25,15 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.cloud.zookeeper.ConditionalOnZookeeperEnabled;
 
 /**
- * Wrapper annotation to enable Zookeeper Discovery
+ * Wrapper annotation to enable Zookeeper Discovery.
  *
+ * @author Marcin Grzejszczak
  * @since 1.1.0
  */
 @Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE, ElementType.METHOD})
+@Target({ ElementType.TYPE, ElementType.METHOD })
 @ConditionalOnZookeeperEnabled
 @ConditionalOnProperty(value = "spring.cloud.zookeeper.discovery.enabled", matchIfMissing = true)
 public @interface ConditionalOnZookeeperDiscoveryEnabled {
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/DependencyPathUtils.java

@@ -1,17 +1,37 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery;
 
 /**
- * Utils for correct dependency path format
+ * Utils for correct dependency path format.
  *
  * @author Denis Stepanov
  * @since 1.0.4
  */
-public class DependencyPathUtils {
+public final class DependencyPathUtils {
+
+	private DependencyPathUtils() {
+	}
 
 	/**
-	 * Sanitizes path by ensuring that path starts with a slash and doesn't have one at the end
-	 * @param path
-	 * @return
+	 * Sanitizes path by ensuring that path starts with a slash and doesn't have one at
+	 * the end.
+	 * @param path file path to sanitize.
+	 * @return sanitized path.
 	 */
 	public static String sanitize(String path) {
 		return withLeadingSlash(withoutSlashAtEnd(path));

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/RibbonZookeeperAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,8 +26,8 @@ import org.springframework.cloud.zookeeper.ConditionalOnZookeeperEnabled;
 import org.springframework.context.annotation.Configuration;
 
 /**
- * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration Auto-configuration}
- * that sets up Ribbon for Zookeeper.
+ * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration
+ * Auto-configuration} that sets up Ribbon for Zookeeper.
  *
  * @author Dave Syer
  * @since 1.0.0
@@ -40,4 +40,5 @@ import org.springframework.context.annotation.Configuration;
 @AutoConfigureAfter(RibbonAutoConfiguration.class)
 @RibbonClients(defaultConfiguration = ZookeeperRibbonClientConfiguration.class)
 public class RibbonZookeeperAutoConfiguration {
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@ package org.springframework.cloud.zookeeper.discovery;
 
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.x.discovery.ServiceDiscovery;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.actuate.autoconfigure.health.ConditionalOnEnabledHealthIndicator;
 import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
@@ -40,8 +41,9 @@ import org.springframework.context.annotation.Configuration;
 @Configuration
 @ConditionalOnBean(ZookeeperDiscoveryClientConfiguration.Marker.class)
 @ConditionalOnZookeeperDiscoveryEnabled
-@AutoConfigureBefore({CommonsClientAutoConfiguration.class, NoopDiscoveryClientAutoConfiguration.class})
-@AutoConfigureAfter({ZookeeperDiscoveryClientConfiguration.class})
+@AutoConfigureBefore({ CommonsClientAutoConfiguration.class,
+		NoopDiscoveryClientAutoConfiguration.class })
+@AutoConfigureAfter({ ZookeeperDiscoveryClientConfiguration.class })
 public class ZookeeperDiscoveryAutoConfiguration {
 
 	@Autowired(required = false)
@@ -52,13 +54,15 @@ public class ZookeeperDiscoveryAutoConfiguration {
 
 	@Bean
 	@ConditionalOnMissingBean
-	public ZookeeperDiscoveryProperties zookeeperDiscoveryProperties(InetUtils inetUtils) {
+	public ZookeeperDiscoveryProperties zookeeperDiscoveryProperties(
+			InetUtils inetUtils) {
 		return new ZookeeperDiscoveryProperties(inetUtils);
 	}
 
 	@Bean
 	@ConditionalOnMissingBean
-	// currently means auto-registration is false. That will change when ZookeeperServiceDiscovery is gone
+	// currently means auto-registration is false. That will change when
+	// ZookeeperServiceDiscovery is gone
 	public ZookeeperDiscoveryClient zookeeperDiscoveryClient(
 			ServiceDiscovery<ZookeeperInstance> serviceDiscovery,
 			ZookeeperDiscoveryProperties zookeeperDiscoveryProperties) {
@@ -66,10 +70,17 @@ public class ZookeeperDiscoveryAutoConfiguration {
 				zookeeperDiscoveryProperties);
 	}
 
+	@Bean
+	public ZookeeperServiceWatch zookeeperServiceWatch(
+			ZookeeperDiscoveryProperties zookeeperDiscoveryProperties) {
+		return new ZookeeperServiceWatch(this.curator, zookeeperDiscoveryProperties);
+	}
+
 	@Configuration
 	@ConditionalOnEnabledHealthIndicator("zookeeper")
 	@ConditionalOnClass(Endpoint.class)
 	protected static class ZookeeperDiscoveryHealthConfig {
+
 		@Autowired(required = false)
 		private ZookeeperDependencies zookeeperDependencies;
 
@@ -82,11 +93,7 @@ public class ZookeeperDiscoveryAutoConfiguration {
 			return new ZookeeperDiscoveryHealthIndicator(curatorFramework,
 					serviceDiscovery, this.zookeeperDependencies, properties);
 		}
-	}
 
-	@Bean
-	public ZookeeperServiceWatch zookeeperServiceWatch(ZookeeperDiscoveryProperties zookeeperDiscoveryProperties) {
-		return new ZookeeperServiceWatch(this.curator, zookeeperDiscoveryProperties);
 	}
 
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryClient.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -46,7 +46,9 @@ public class ZookeeperDiscoveryClient implements DiscoveryClient {
 	private static final Log log = LogFactory.getLog(ZookeeperDiscoveryClient.class);
 
 	private final ZookeeperDependencies zookeeperDependencies;
+
 	private final ServiceDiscovery<ZookeeperInstance> serviceDiscovery;
+
 	private final ZookeeperDiscoveryProperties zookeeperDiscoveryProperties;
 
 	public ZookeeperDiscoveryClient(ServiceDiscovery<ZookeeperInstance> serviceDiscovery,
@@ -62,7 +64,8 @@ public class ZookeeperDiscoveryClient implements DiscoveryClient {
 		return "Spring Cloud Zookeeper Discovery Client";
 	}
 
-	private static org.springframework.cloud.client.ServiceInstance createServiceInstance(String serviceId, ServiceInstance<ZookeeperInstance> serviceInstance) {
+	private static org.springframework.cloud.client.ServiceInstance createServiceInstance(
+			String serviceId, ServiceInstance<ZookeeperInstance> serviceInstance) {
 		return new ZookeeperServiceInstance(serviceId, serviceInstance);
 	}
 
@@ -74,19 +77,24 @@ public class ZookeeperDiscoveryClient implements DiscoveryClient {
 				return Collections.EMPTY_LIST;
 			}
 			String serviceIdToQuery = getServiceIdToQuery(serviceId);
-			Collection<ServiceInstance<ZookeeperInstance>> zkInstances = getServiceDiscovery().queryForInstances(serviceIdToQuery);
+			Collection<ServiceInstance<ZookeeperInstance>> zkInstances = getServiceDiscovery()
+					.queryForInstances(serviceIdToQuery);
 			List<org.springframework.cloud.client.ServiceInstance> instances = new ArrayList<>();
 			for (ServiceInstance<ZookeeperInstance> instance : zkInstances) {
 				instances.add(createServiceInstance(serviceIdToQuery, instance));
 			}
 			return instances;
-		} catch (KeeperException.NoNodeException e) {
+		}
+		catch (KeeperException.NoNodeException e) {
 			if (log.isDebugEnabled()) {
-				log.debug("Error getting instances from zookeeper. Possibly, no service has registered.", e);
+				log.debug(
+						"Error getting instances from zookeeper. Possibly, no service has registered.",
+						e);
 			}
 			// this means that nothing has registered as a service yes
 			return Collections.emptyList();
-		} catch (Exception exception) {
+		}
+		catch (Exception exception) {
 			rethrowRuntimeException(exception);
 		}
 		return new ArrayList<>();
@@ -97,7 +105,8 @@ public class ZookeeperDiscoveryClient implements DiscoveryClient {
 	}
 
 	private String getServiceIdToQuery(String serviceId) {
-		if (this.zookeeperDependencies != null && this.zookeeperDependencies.hasDependencies()) {
+		if (this.zookeeperDependencies != null
+				&& this.zookeeperDependencies.hasDependencies()) {
 			String pathForAlias = this.zookeeperDependencies.getPathForAlias(serviceId);
 			return pathForAlias.isEmpty() ? serviceId : pathForAlias;
 		}
@@ -108,7 +117,8 @@ public class ZookeeperDiscoveryClient implements DiscoveryClient {
 	public List<String> getServices() {
 		List<String> services = null;
 		if (getServiceDiscovery() == null) {
-			log.warn("Service Discovery is not yet ready - returning empty list of services");
+			log.warn(
+					"Service Discovery is not yet ready - returning empty list of services");
 			return Collections.emptyList();
 		}
 		try {
@@ -120,7 +130,9 @@ public class ZookeeperDiscoveryClient implements DiscoveryClient {
 		}
 		catch (KeeperException.NoNodeException e) {
 			if (log.isDebugEnabled()) {
-				log.debug("Error getting services from zookeeper. Possibly, no service has registered.", e);
+				log.debug(
+						"Error getting services from zookeeper. Possibly, no service has registered.",
+						e);
 			}
 			// this means that nothing has registered as a service yes
 			return Collections.emptyList();
@@ -135,4 +147,5 @@ public class ZookeeperDiscoveryClient implements DiscoveryClient {
 	public int getOrder() {
 		return this.zookeeperDiscoveryProperties.getOrder();
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryClientConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,8 +21,8 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 /**
- * {@link org.springframework.cloud.client.discovery.DiscoveryClient} configuration
- * for Zookeeper.
+ * {@link org.springframework.cloud.client.discovery.DiscoveryClient} configuration for
+ * Zookeeper.
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -31,11 +31,12 @@ import org.springframework.context.annotation.Configuration;
 @ConditionalOnProperty(value = "spring.cloud.zookeeper.discovery.enabled", matchIfMissing = true)
 public class ZookeeperDiscoveryClientConfiguration {
 
-	class Marker {}
-
 	@Bean
 	public Marker zookeeperDiscoveryClientMarker() {
 		return new Marker();
 	}
 
+	class Marker {
+	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryHealthIndicator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,6 +21,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.x.discovery.ServiceDiscovery;
 import org.apache.curator.x.discovery.ServiceInstance;
+
 import org.springframework.boot.actuate.health.Health;
 import org.springframework.cloud.client.discovery.health.DiscoveryHealthIndicator;
 import org.springframework.cloud.zookeeper.discovery.dependency.ZookeeperDependencies;
@@ -38,8 +39,11 @@ public class ZookeeperDiscoveryHealthIndicator implements DiscoveryHealthIndicat
 			.getLog(ZookeeperDiscoveryHealthIndicator.class);
 
 	private CuratorFramework curatorFramework;
+
 	private ServiceDiscovery<ZookeeperInstance> serviceDiscovery;
+
 	private final ZookeeperDependencies zookeeperDependencies;
+
 	private final ZookeeperDiscoveryProperties zookeeperDiscoveryProperties;
 
 	public ZookeeperDiscoveryHealthIndicator(CuratorFramework curatorFramework,
@@ -61,10 +65,9 @@ public class ZookeeperDiscoveryHealthIndicator implements DiscoveryHealthIndicat
 	public Health health() {
 		Health.Builder builder = Health.unknown();
 		try {
-			Iterable<ServiceInstance<ZookeeperInstance>> allInstances =
-					new ZookeeperServiceInstances(this.curatorFramework,
-						this.serviceDiscovery, this.zookeeperDependencies,
-						this.zookeeperDiscoveryProperties);
+			Iterable<ServiceInstance<ZookeeperInstance>> allInstances = new ZookeeperServiceInstances(
+					this.curatorFramework, this.serviceDiscovery,
+					this.zookeeperDependencies, this.zookeeperDiscoveryProperties);
 			builder.up().withDetail("services", allInstances);
 		}
 		catch (Exception e) {

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,6 +33,9 @@ import org.springframework.util.StringUtils;
 @ConfigurationProperties("spring.cloud.zookeeper.discovery")
 public class ZookeeperDiscoveryProperties {
 
+	/**
+	 * Default URI spec.
+	 */
 	public static final String DEFAULT_URI_SPEC = "{scheme}://{address}:{port}";
 
 	private InetUtils.HostInfo hostInfo;
@@ -40,12 +43,12 @@ public class ZookeeperDiscoveryProperties {
 	private boolean enabled = true;
 
 	/**
-	 * Root Zookeeper folder in which all instances are registered
+	 * Root Zookeeper folder in which all instances are registered.
 	 */
 	private String root = "/services";
 
 	/**
-	 * The URI specification to resolve during service registration in Zookeeper
+	 * The URI specification to resolve during service registration in Zookeeper.
 	 */
 	private String uriSpec = DEFAULT_URI_SPEC;
 
@@ -58,16 +61,17 @@ public class ZookeeperDiscoveryProperties {
 	 */
 	private String instanceHost;
 
-	/** IP address to use when accessing service (must also set preferIpAddress
-            to use) */
+	/**
+	 * IP address to use when accessing service (must also set preferIpAddress to use).
+	 */
 	private String instanceIpAddress;
 
 	/**
-	 * Use ip address rather than hostname during registration
+	 * Use ip address rather than hostname during registration.
 	 */
 	private boolean preferIpAddress = false;
 
-	/** Port to register the service under (defaults to listening port) */
+	/** Port to register the service under (defaults to listening port). */
 	private Integer instancePort;
 
 	/** Ssl port of the registered service. */
@@ -85,17 +89,20 @@ public class ZookeeperDiscoveryProperties {
 	private Map<String, String> metadata = new HashMap<>();
 
 	/**
-	 * The initial status of this instance (defaults to {@link StatusConstants#STATUS_UP}).
+	 * The initial status of this instance (defaults to
+	 * {@link StatusConstants#STATUS_UP}).
 	 */
 	private String initialStatus = StatusConstants.STATUS_UP;
 
 	/**
-	 * Order of the discovery client used by `CompositeDiscoveryClient` for sorting available clients.
+	 * Order of the discovery client used by `CompositeDiscoveryClient` for sorting
+	 * available clients.
 	 */
 	private int order = 0;
 
 	// Visible for Testing
-	protected ZookeeperDiscoveryProperties() {}
+	protected ZookeeperDiscoveryProperties() {
+	}
 
 	public ZookeeperDiscoveryProperties(InetUtils inetUtils) {
 		this.hostInfo = inetUtils.findFirstNonLoopbackHostInfo();
@@ -206,17 +213,13 @@ public class ZookeeperDiscoveryProperties {
 
 	@Override
 	public String toString() {
-		return "ZookeeperDiscoveryProperties{" + "enabled=" + this.enabled +
-				", root='" + this.root + '\'' +
-				", uriSpec='" + this.uriSpec + '\'' +
-				", instanceId='" + this.instanceId + '\'' +
-				", instanceHost='" + this.instanceHost + '\'' +
-				", instancePort='" + this.instancePort + '\'' +
-				", instanceSslPort='" + this.instanceSslPort + '\'' +
-				", metadata=" + this.metadata +
-				", register=" + this.register +
-				", initialStatus=" + this.initialStatus +
-				", order=" + this.order +
-				'}';
+		return "ZookeeperDiscoveryProperties{" + "enabled=" + this.enabled + ", root='"
+				+ this.root + '\'' + ", uriSpec='" + this.uriSpec + '\''
+				+ ", instanceId='" + this.instanceId + '\'' + ", instanceHost='"
+				+ this.instanceHost + '\'' + ", instancePort='" + this.instancePort + '\''
+				+ ", instanceSslPort='" + this.instanceSslPort + '\'' + ", metadata="
+				+ this.metadata + ", register=" + this.register + ", initialStatus="
+				+ this.initialStatus + ", order=" + this.order + '}';
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperInstance.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,8 +26,11 @@ import java.util.Map;
  * @since 1.0.0
  */
 public class ZookeeperInstance {
+
 	private String id;
+
 	private String name;
+
 	private Map<String, String> metadata = new HashMap<>();
 
 	@SuppressWarnings("unused")
@@ -66,9 +69,8 @@ public class ZookeeperInstance {
 
 	@Override
 	public String toString() {
-		return "ZookeeperInstance{" + "id='" + this.id + '\'' +
-				", name='" + this.name + '\'' +
-				", metadata=" + this.metadata +
-				'}';
+		return "ZookeeperInstance{" + "id='" + this.id + '\'' + ", name='" + this.name
+				+ '\'' + ", metadata=" + this.metadata + '}';
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperRibbonClientConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,9 +18,18 @@ package org.springframework.cloud.zookeeper.discovery;
 
 import javax.annotation.PostConstruct;
 
+import com.netflix.client.config.IClientConfig;
+import com.netflix.config.ConfigurationManager;
+import com.netflix.config.DynamicPropertyFactory;
+import com.netflix.config.DynamicStringProperty;
+import com.netflix.loadbalancer.ILoadBalancer;
+import com.netflix.loadbalancer.IPing;
+import com.netflix.loadbalancer.PingUrl;
+import com.netflix.loadbalancer.ServerList;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.curator.x.discovery.ServiceDiscovery;
+
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
@@ -32,15 +41,6 @@ import org.springframework.cloud.zookeeper.discovery.dependency.ZookeeperDepende
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
-import com.netflix.client.config.IClientConfig;
-import com.netflix.config.ConfigurationManager;
-import com.netflix.config.DynamicPropertyFactory;
-import com.netflix.config.DynamicStringProperty;
-import com.netflix.loadbalancer.ILoadBalancer;
-import com.netflix.loadbalancer.IPing;
-import com.netflix.loadbalancer.PingUrl;
-import com.netflix.loadbalancer.ServerList;
-
 import static com.netflix.client.config.CommonClientConfigKey.DeploymentContextBasedVipAddresses;
 import static com.netflix.client.config.CommonClientConfigKey.EnableZoneAffinity;
 
@@ -56,9 +56,12 @@ import static com.netflix.client.config.CommonClientConfigKey.EnableZoneAffinity
  */
 @Configuration
 public class ZookeeperRibbonClientConfiguration {
-	private static final Log log = LogFactory.getLog(ZookeeperRibbonClientConfiguration.class);
+
+	private static final Log log = LogFactory
+			.getLog(ZookeeperRibbonClientConfiguration.class);
 
 	protected static final String VALUE_NOT_SET = "__not__set__";
+
 	protected static final String DEFAULT_NAMESPACE = "ribbon";
 
 	@Value("${ribbon.client.name}")
@@ -75,7 +78,9 @@ public class ZookeeperRibbonClientConfiguration {
 			ServiceDiscovery<ZookeeperInstance> serviceDiscovery) {
 		ZookeeperServerList serverList = new ZookeeperServerList(serviceDiscovery);
 		serverList.initFromDependencies(config, zookeeperDependencies);
-		log.debug(String.format("Server list for Ribbon's dependencies based load balancing is [%s]", serverList));
+		log.debug(String.format(
+				"Server list for Ribbon's dependencies based load balancing is [%s]",
+				serverList));
 		return serverList;
 	}
 
@@ -83,9 +88,11 @@ public class ZookeeperRibbonClientConfiguration {
 	@ConditionalOnMissingBean
 	@ConditionalOnDependenciesPassed
 	@ConditionalOnProperty(value = "spring.cloud.zookeeper.dependency.ribbon.loadbalancer", matchIfMissing = true)
-	public ILoadBalancer dependenciesBasedLoadBalancer(ZookeeperDependencies zookeeperDependencies,
-			ServerList<?> serverList, IClientConfig config, IPing iPing) {
-		return new DependenciesBasedLoadBalancer(zookeeperDependencies, serverList, config, iPing);
+	public ILoadBalancer dependenciesBasedLoadBalancer(
+			ZookeeperDependencies zookeeperDependencies, ServerList<?> serverList,
+			IClientConfig config, IPing iPing) {
+		return new DependenciesBasedLoadBalancer(zookeeperDependencies, serverList,
+				config, iPing);
 	}
 
 	@Bean
@@ -102,11 +109,12 @@ public class ZookeeperRibbonClientConfiguration {
 			ServiceDiscovery<ZookeeperInstance> serviceDiscovery) {
 		ZookeeperServerList serverList = new ZookeeperServerList(serviceDiscovery);
 		serverList.initWithNiwsConfig(config);
-		log.debug(String.format("Server list for Ribbon's non-dependency based load balancing is [%s]", serverList));
+		log.debug(String.format(
+				"Server list for Ribbon's non-dependency based load balancing is [%s]",
+				serverList));
 		return serverList;
 	}
 
-
 	@Bean
 	public ServerIntrospector serverIntrospector() {
 		return new ZookeeperServerIntrospector();

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperServer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,12 +16,11 @@
 
 package org.springframework.cloud.zookeeper.discovery;
 
+import com.netflix.loadbalancer.Server;
 import org.apache.curator.x.discovery.ServiceInstance;
 
-import com.netflix.loadbalancer.Server;
-
 /**
- * A Zookeeper version of a {@link Server Ribbon Server}
+ * A Zookeeper version of a {@link Server Ribbon Server}.
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -29,6 +28,7 @@ import com.netflix.loadbalancer.Server;
 public class ZookeeperServer extends Server {
 
 	private final MetaInfo metaInfo;
+
 	private ServiceInstance<ZookeeperInstance> instance;
 
 	public ZookeeperServer(final ServiceInstance<ZookeeperInstance> instance) {
@@ -66,4 +66,5 @@ public class ZookeeperServer extends Server {
 	public ServiceInstance<ZookeeperInstance> getInstance() {
 		return this.instance;
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperServerIntrospector.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,16 +16,18 @@
 
 package org.springframework.cloud.zookeeper.discovery;
 
+import java.util.Map;
+
 import com.netflix.loadbalancer.Server;
 import org.apache.curator.x.discovery.ServiceInstance;
-import org.springframework.cloud.netflix.ribbon.DefaultServerIntrospector;
 
-import java.util.Map;
+import org.springframework.cloud.netflix.ribbon.DefaultServerIntrospector;
 
 /**
  * @author Spencer Gibb
  */
 public class ZookeeperServerIntrospector extends DefaultServerIntrospector {
+
 	@Override
 	public boolean isSecure(Server server) {
 		if (server instanceof ZookeeperServer) {
@@ -47,4 +49,5 @@ public class ZookeeperServerIntrospector extends DefaultServerIntrospector {
 		}
 		return super.getMetadata(server);
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperServerList.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,22 +21,22 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
-import org.apache.curator.x.discovery.ServiceDiscovery;
-import org.apache.curator.x.discovery.ServiceInstance;
-import org.springframework.cloud.zookeeper.discovery.dependency.ZookeeperDependencies;
-import org.springframework.util.StringUtils;
-
 import com.netflix.client.config.IClientConfig;
 import com.netflix.loadbalancer.AbstractServerList;
+import org.apache.curator.x.discovery.ServiceDiscovery;
+import org.apache.curator.x.discovery.ServiceInstance;
+
+import org.springframework.cloud.zookeeper.discovery.dependency.ZookeeperDependencies;
+import org.springframework.util.StringUtils;
 
 import static org.springframework.cloud.zookeeper.support.StatusConstants.INSTANCE_STATUS_KEY;
 import static org.springframework.cloud.zookeeper.support.StatusConstants.STATUS_UP;
 import static org.springframework.util.ReflectionUtils.rethrowRuntimeException;
 
 /**
- * Zookeeper version of {@link AbstractServerList} that returns the list of
- * servers on which instances are ran. The implementation is capable of resolving
- * the servers from {@link ZookeeperDependencies}.
+ * Zookeeper version of {@link AbstractServerList} that returns the list of servers on
+ * which instances are ran. The implementation is capable of resolving the servers from
+ * {@link ZookeeperDependencies}.
  *
  * @author Spencer Gibb
  * @author Marcin Grzejszczak
@@ -45,6 +45,7 @@ import static org.springframework.util.ReflectionUtils.rethrowRuntimeException;
 public class ZookeeperServerList extends AbstractServerList<ZookeeperServer> {
 
 	private String serviceId;
+
 	private final ServiceDiscovery<ZookeeperInstance> serviceDiscovery;
 
 	public ZookeeperServerList(ServiceDiscovery<ZookeeperInstance> serviceDiscovery) {
@@ -56,13 +57,18 @@ public class ZookeeperServerList extends AbstractServerList<ZookeeperServer> {
 		this.serviceId = clientConfig.getClientName();
 	}
 
-	public void initFromDependencies(IClientConfig clientConfig, ZookeeperDependencies zookeeperDependencies) {
-		this.serviceId = getServiceIdFromDepsOrClientName(clientConfig, zookeeperDependencies);
+	public void initFromDependencies(IClientConfig clientConfig,
+			ZookeeperDependencies zookeeperDependencies) {
+		this.serviceId = getServiceIdFromDepsOrClientName(clientConfig,
+				zookeeperDependencies);
 	}
 
-	private String getServiceIdFromDepsOrClientName(IClientConfig clientConfig, ZookeeperDependencies zookeeperDependencies) {
-		String serviceIdFromDeps = zookeeperDependencies.getPathForAlias(clientConfig.getClientName());
-		return StringUtils.hasText(serviceIdFromDeps) ? serviceIdFromDeps : clientConfig.getClientName();
+	private String getServiceIdFromDepsOrClientName(IClientConfig clientConfig,
+			ZookeeperDependencies zookeeperDependencies) {
+		String serviceIdFromDeps = zookeeperDependencies
+				.getPathForAlias(clientConfig.getClientName());
+		return StringUtils.hasText(serviceIdFromDeps) ? serviceIdFromDeps
+				: clientConfig.getClientName();
 	}
 
 	@Override
@@ -89,8 +95,10 @@ public class ZookeeperServerList extends AbstractServerList<ZookeeperServer> {
 			List<ZookeeperServer> servers = new ArrayList<>();
 			for (ServiceInstance<ZookeeperInstance> instance : instances) {
 				String instanceStatus = null;
-				if (instance.getPayload() != null && instance.getPayload().getMetadata() != null) {
-					instanceStatus = instance.getPayload().getMetadata().get(INSTANCE_STATUS_KEY);
+				if (instance.getPayload() != null
+						&& instance.getPayload().getMetadata() != null) {
+					instanceStatus = instance.getPayload().getMetadata()
+							.get(INSTANCE_STATUS_KEY);
 				}
 				if (!StringUtils.hasText(instanceStatus) // backwards compatibility
 						|| instanceStatus.equalsIgnoreCase(STATUS_UP)) {
@@ -104,4 +112,5 @@ public class ZookeeperServerList extends AbstractServerList<ZookeeperServer> {
 		}
 		return Collections.EMPTY_LIST;
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperServiceInstance.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,27 +23,35 @@ import java.util.Map;
 import org.springframework.cloud.client.ServiceInstance;
 
 /**
- * A specific {@link ServiceInstance} describing a zookeeper service instance
+ * A specific {@link ServiceInstance} describing a zookeeper service instance.
  *
- * @author Reda.Housni-Alaoui
+ * @author Reda Housni-Alaoui
  * @author Tim Ysewyn
  * @since 1.1.0
  */
 public class ZookeeperServiceInstance implements ServiceInstance {
 
 	private final String serviceId;
+
 	private final String host;
+
 	private final int port;
+
 	private final boolean secure;
+
 	private final URI uri;
+
 	private final Map<String, String> metadata;
+
 	private final org.apache.curator.x.discovery.ServiceInstance<ZookeeperInstance> serviceInstance;
 
 	/**
 	 * @param serviceId The service id to be used
-	 * @param serviceInstance The zookeeper service instance described by this service instance
+	 * @param serviceInstance The zookeeper service instance described by this service
+	 * instance
 	 */
-	public ZookeeperServiceInstance(String serviceId, org.apache.curator.x.discovery.ServiceInstance<ZookeeperInstance> serviceInstance) {
+	public ZookeeperServiceInstance(String serviceId,
+			org.apache.curator.x.discovery.ServiceInstance<ZookeeperInstance> serviceInstance) {
 		this.serviceId = serviceId;
 		this.serviceInstance = serviceInstance;
 		this.host = this.serviceInstance.getAddress();
@@ -56,7 +64,8 @@ public class ZookeeperServiceInstance implements ServiceInstance {
 		this.uri = URI.create(serviceInstance.buildUriSpec());
 		if (serviceInstance.getPayload() != null) {
 			this.metadata = serviceInstance.getPayload().getMetadata();
-		} else {
+		}
+		else {
 			this.metadata = new HashMap<>();
 		}
 	}
@@ -99,4 +108,5 @@ public class ZookeeperServiceInstance implements ServiceInstance {
 	public org.apache.curator.x.discovery.ServiceInstance<ZookeeperInstance> getServiceInstance() {
 		return this.serviceInstance;
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperServiceInstances.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery;
 
 import java.util.ArrayList;
@@ -10,6 +26,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.x.discovery.ServiceDiscovery;
 import org.apache.curator.x.discovery.ServiceInstance;
+
 import org.springframework.cloud.zookeeper.discovery.dependency.ZookeeperDependencies;
 
 import static org.springframework.cloud.zookeeper.discovery.DependencyPathUtils.sanitize;
@@ -19,6 +36,7 @@ import static org.springframework.cloud.zookeeper.discovery.DependencyPathUtils.
  * {@link ZookeeperDependencies} it will return a list of registered Zookeeper instances
  * corresponding to the ones defined in the dependencies.
  *
+ * @author Marcin Grzejszczak
  * @since 1.0.0
  */
 public class ZookeeperServiceInstances
@@ -27,9 +45,13 @@ public class ZookeeperServiceInstances
 	private static final Log log = LogFactory.getLog(ZookeeperServiceInstances.class);
 
 	private ServiceDiscovery<ZookeeperInstance> serviceDiscovery;
+
 	private final ZookeeperDependencies zookeeperDependencies;
+
 	private final ZookeeperDiscoveryProperties zookeeperDiscoveryProperties;
+
 	private final List<ServiceInstance<ZookeeperInstance>> allInstances;
+
 	private final CuratorFramework curator;
 
 	public ZookeeperServiceInstances(CuratorFramework curator,
@@ -74,9 +96,11 @@ public class ZookeeperServiceInstances
 		try {
 			List<String> children = this.curator.getChildren().forPath(parentPath);
 			return iterateOverChildren(accumulator, parentPath, children);
-		} catch (Exception e) {
+		}
+		catch (Exception e) {
 			if (log.isTraceEnabled()) {
-				log.trace("Exception occurred while trying to retrieve children of [" + parentPath + "]", e);
+				log.trace("Exception occurred while trying to retrieve children of ["
+						+ parentPath + "]", e);
 			}
 			return injectZookeeperServiceInstances(accumulator, parentPath);
 		}
@@ -90,8 +114,7 @@ public class ZookeeperServiceInstances
 	private Collection<ServiceInstance<ZookeeperInstance>> tryToGetInstances(
 			String path) {
 		try {
-			return getServiceDiscovery()
-					.queryForInstances(getPathWithoutRoot(path));
+			return getServiceDiscovery().queryForInstances(getPathWithoutRoot(path));
 		}
 		catch (Exception e) {
 			log.trace("Exception occurred while trying to retrieve instances of [" + path
@@ -111,7 +134,8 @@ public class ZookeeperServiceInstances
 	private List<ServiceInstance<ZookeeperInstance>> injectZookeeperServiceInstances(
 			List<ServiceInstance<ZookeeperInstance>> accumulator, String name)
 			throws Exception {
-		Collection<ServiceInstance<ZookeeperInstance>> instances = getServiceDiscovery().queryForInstances(name);
+		Collection<ServiceInstance<ZookeeperInstance>> instances = getServiceDiscovery()
+				.queryForInstances(name);
 		accumulator.addAll(convertCollectionToList(instances));
 		return accumulator;
 	}

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperServiceWatch.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,13 +16,15 @@
 
 package org.springframework.cloud.zookeeper.discovery;
 
-import javax.annotation.PreDestroy;
 import java.util.concurrent.atomic.AtomicLong;
 
+import javax.annotation.PreDestroy;
+
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.recipes.cache.TreeCache;
 import org.apache.curator.framework.recipes.cache.TreeCacheEvent;
 import org.apache.curator.framework.recipes.cache.TreeCacheListener;
+
 import org.springframework.cloud.client.discovery.event.HeartbeatEvent;
 import org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent;
 import org.springframework.context.ApplicationEventPublisher;
@@ -31,20 +33,24 @@ import org.springframework.context.ApplicationListener;
 import org.springframework.util.ReflectionUtils;
 
 /**
- * A {@link TreeCacheListener} that sends {@link HeartbeatEvent} when an
- * entry inside Zookeeper has changed.
+ * A {@link TreeCacheListener} that sends {@link HeartbeatEvent} when an entry inside
+ * Zookeeper has changed.
  *
  * @author Spencer Gibb
  * @since 1.0.0
  */
-public class ZookeeperServiceWatch implements
-		ApplicationListener<InstanceRegisteredEvent<?>>, TreeCacheListener,
+public class ZookeeperServiceWatch
+		implements ApplicationListener<InstanceRegisteredEvent<?>>, TreeCacheListener,
 		ApplicationEventPublisherAware {
 
 	private final CuratorFramework curator;
+
 	private final ZookeeperDiscoveryProperties properties;
+
 	private final AtomicLong cacheChange = new AtomicLong(0);
+
 	private ApplicationEventPublisher publisher;
+
 	private TreeCache cache;
 
 	public ZookeeperServiceWatch(CuratorFramework curator,
@@ -64,7 +70,8 @@ public class ZookeeperServiceWatch implements
 
 	@Override
 	public void onApplicationEvent(InstanceRegisteredEvent<?> event) {
-		this.cache = TreeCache.newBuilder(this.curator, this.properties.getRoot()).build();
+		this.cache = TreeCache.newBuilder(this.curator, this.properties.getRoot())
+				.build();
 		this.cache.getListenable().addListener(this);
 		try {
 			this.cache.start();
@@ -82,7 +89,8 @@ public class ZookeeperServiceWatch implements
 	}
 
 	@Override
-	public void childEvent(CuratorFramework client, TreeCacheEvent event) throws Exception {
+	public void childEvent(CuratorFramework client, TreeCacheEvent event)
+			throws Exception {
 		if (event.getType().equals(TreeCacheEvent.Type.NODE_ADDED)
 				|| event.getType().equals(TreeCacheEvent.Type.NODE_REMOVED)
 				|| event.getType().equals(TreeCacheEvent.Type.NODE_UPDATED)) {
@@ -90,4 +98,5 @@ public class ZookeeperServiceWatch implements
 			this.publisher.publishEvent(new HeartbeatEvent(this, newCacheChange));
 		}
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/configclient/ZookeeperDiscoveryClientConfigServiceBootstrapConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -39,15 +39,19 @@ import org.springframework.core.annotation.Order;
 @ConditionalOnProperty(value = "spring.cloud.config.discovery.enabled", matchIfMissing = false)
 @Configuration
 @Import({ ZookeeperAutoConfiguration.class, ZookeeperDiscoveryClientConfiguration.class,
-		CuratorServiceDiscoveryAutoConfiguration.class, ZookeeperDiscoveryAutoConfiguration.class})
+		CuratorServiceDiscoveryAutoConfiguration.class,
+		ZookeeperDiscoveryAutoConfiguration.class })
 @Order(0)
 public class ZookeeperDiscoveryClientConfigServiceBootstrapConfiguration {
 
 	@Bean
-	public ZookeeperDiscoveryProperties zookeeperDiscoveryProperties(InetUtils inetUtils) {
-		ZookeeperDiscoveryProperties properties = new ZookeeperDiscoveryProperties(inetUtils);
+	public ZookeeperDiscoveryProperties zookeeperDiscoveryProperties(
+			InetUtils inetUtils) {
+		ZookeeperDiscoveryProperties properties = new ZookeeperDiscoveryProperties(
+				inetUtils);
 		// for bootstrap, registration is not needed, just discovery client
 		properties.setRegister(false);
 		return properties;
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/ConditionalOnDependenciesNotPassed.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,13 +24,14 @@ import java.lang.annotation.Target;
 import org.springframework.context.annotation.Conditional;
 
 /**
- * Annotation to turn off a feature if Zookeeper dependencies have NOT been passed
+ * Annotation to turn off a feature if Zookeeper dependencies have NOT been passed.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
  */
-@Target({ElementType.TYPE, ElementType.METHOD})
+@Target({ ElementType.TYPE, ElementType.METHOD })
 @Retention(RetentionPolicy.RUNTIME)
 @Conditional(DependenciesNotPassedCondition.class)
 public @interface ConditionalOnDependenciesNotPassed {
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/ConditionalOnDependenciesPassed.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,14 +24,15 @@ import java.lang.annotation.Target;
 import org.springframework.context.annotation.Conditional;
 
 /**
- * Annotation to turn on a feature if Zookeeper dependencies have been passed. 
- * Also checks if switch for zookeeper dependencies is turned on.
+ * Annotation to turn on a feature if Zookeeper dependencies have been passed. Also checks
+ * if switch for zookeeper dependencies is turned on.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
  */
-@Target({ElementType.TYPE, ElementType.METHOD})
+@Target({ ElementType.TYPE, ElementType.METHOD })
 @Retention(RetentionPolicy.RUNTIME)
 @Conditional(DependenciesPassedCondition.class)
 public @interface ConditionalOnDependenciesPassed {
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/DependenciesBasedLoadBalancer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,13 +27,12 @@ import com.netflix.loadbalancer.RandomRule;
 import com.netflix.loadbalancer.RoundRobinRule;
 import com.netflix.loadbalancer.Server;
 import com.netflix.loadbalancer.ServerList;
-
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
 /**
- * LoadBalancer that delegates to other rules depending on the provided load balancing strategy
- * in the {@link ZookeeperDependency#getLoadBalancerType()}
+ * LoadBalancer that delegates to other rules depending on the provided load balancing
+ * strategy in the {@link ZookeeperDependency#getLoadBalancerType()}.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
@@ -46,7 +45,8 @@ public class DependenciesBasedLoadBalancer extends DynamicServerListLoadBalancer
 
 	private final ZookeeperDependencies zookeeperDependencies;
 
-	public DependenciesBasedLoadBalancer(ZookeeperDependencies zookeeperDependencies, ServerList<?> serverList, IClientConfig config, IPing iPing) {
+	public DependenciesBasedLoadBalancer(ZookeeperDependencies zookeeperDependencies,
+			ServerList<?> serverList, IClientConfig config, IPing iPing) {
 		super(config);
 		this.zookeeperDependencies = zookeeperDependencies;
 		setServersList(serverList.getInitialListOfServers());
@@ -59,17 +59,24 @@ public class DependenciesBasedLoadBalancer extends DynamicServerListLoadBalancer
 		String keyAsString;
 		if ("default".equals(key)) { // this is the default hint, use name instead
 			keyAsString = getName();
-		} else {
+		}
+		else {
 			keyAsString = (String) key;
 		}
-		ZookeeperDependency dependency = this.zookeeperDependencies.getDependencyForAlias(keyAsString);
-		log.debug(String.format("Current dependencies are [%s]", this.zookeeperDependencies));
+		ZookeeperDependency dependency = this.zookeeperDependencies
+				.getDependencyForAlias(keyAsString);
+		log.debug(String.format("Current dependencies are [%s]",
+				this.zookeeperDependencies));
 		if (dependency == null) {
-			log.debug(String.format("No dependency found for alias [%s] - will use the default rule which is [%s]", keyAsString, this.rule));
+			log.debug(String.format(
+					"No dependency found for alias [%s] - will use the default rule which is [%s]",
+					keyAsString, this.rule));
 			return this.rule.choose(key);
 		}
 		cacheEntryIfMissing(keyAsString, dependency);
-		log.debug(String.format("Will try to retrieve dependency for key [%s]. Current cache contents [%s]", keyAsString, this.ruleCache));
+		log.debug(String.format(
+				"Will try to retrieve dependency for key [%s]. Current cache contents [%s]",
+				keyAsString, this.ruleCache));
 		updateListOfServers();
 		return this.ruleCache.get(keyAsString).choose(key);
 	}
@@ -77,20 +84,21 @@ public class DependenciesBasedLoadBalancer extends DynamicServerListLoadBalancer
 	private void cacheEntryIfMissing(String keyAsString, ZookeeperDependency dependency) {
 		if (!this.ruleCache.containsKey(keyAsString)) {
 			log.debug(String.format("Cache doesn't contain entry for [%s]", keyAsString));
-			this.ruleCache.put(keyAsString, chooseRuleForLoadBalancerType(dependency.getLoadBalancerType()));
+			this.ruleCache.put(keyAsString,
+					chooseRuleForLoadBalancerType(dependency.getLoadBalancerType()));
 		}
 	}
 
 	private IRule chooseRuleForLoadBalancerType(LoadBalancerType type) {
 		switch (type) {
-			case ROUND_ROBIN:
-				return getRoundRobinRule();
-			case RANDOM:
-				return getRandomRule();
-			case STICKY:
-				return getStickyRule();
-			default:
-				throw new IllegalArgumentException("Unknown load balancer type " + type);
+		case ROUND_ROBIN:
+			return getRoundRobinRule();
+		case RANDOM:
+			return getRandomRule();
+		case STICKY:
+			return getStickyRule();
+		default:
+			throw new IllegalArgumentException("Unknown load balancer type " + type);
 		}
 	}
 
@@ -109,4 +117,5 @@ public class DependenciesBasedLoadBalancer extends DynamicServerListLoadBalancer
 		stickyRule.setLoadBalancer(this);
 		return stickyRule;
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/DependenciesNotPassedCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
@@ -20,7 +21,7 @@ import org.springframework.context.annotation.ConditionContext;
 import org.springframework.core.type.AnnotatedTypeMetadata;
 
 /**
- * Inverse of the {@link ConditionalOnDependenciesPassed} condition. 
+ * Inverse of the {@link ConditionalOnDependenciesPassed} condition.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
@@ -28,7 +29,8 @@ import org.springframework.core.type.AnnotatedTypeMetadata;
 public class DependenciesNotPassedCondition extends DependenciesPassedCondition {
 
 	@Override
-	public ConditionOutcome getMatchOutcome(ConditionContext context, AnnotatedTypeMetadata metadata) {
+	public ConditionOutcome getMatchOutcome(ConditionContext context,
+			AnnotatedTypeMetadata metadata) {
 		ConditionOutcome propertiesSet = super.getMatchOutcome(context, metadata);
 		return ConditionOutcome.inverse(propertiesSet);
 	}

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/DependenciesPassedCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import java.util.Collections;
@@ -26,8 +27,8 @@ import org.springframework.context.annotation.ConditionContext;
 import org.springframework.core.type.AnnotatedTypeMetadata;
 
 /**
- * Condition that verifies if the Dependencies have been passed in an appropriate
- * place in the application properties.
+ * Condition that verifies if the Dependencies have been passed in an appropriate place in
+ * the application properties.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
@@ -36,21 +37,26 @@ public class DependenciesPassedCondition extends SpringBootCondition {
 
 	private static final Bindable<Map<String, String>> STRING_STRING_MAP = Bindable
 			.mapOf(String.class, String.class);
+
 	private static final String ZOOKEEPER_DEPENDENCIES_PROP = "spring.cloud.zookeeper.dependencies";
 
 	@Override
-	public ConditionOutcome getMatchOutcome(ConditionContext context, AnnotatedTypeMetadata metadata) {
+	public ConditionOutcome getMatchOutcome(ConditionContext context,
+			AnnotatedTypeMetadata metadata) {
 		Map<String, String> subProperties = Binder.get(context.getEnvironment())
-				.bind(ZOOKEEPER_DEPENDENCIES_PROP, STRING_STRING_MAP).orElseGet(Collections::emptyMap);
+				.bind(ZOOKEEPER_DEPENDENCIES_PROP, STRING_STRING_MAP)
+				.orElseGet(Collections::emptyMap);
 		if (!subProperties.isEmpty()) {
 			return ConditionOutcome.match("Dependencies are defined in configuration");
 		}
-		Boolean dependenciesEnabled = context.getEnvironment()
-				.getProperty("spring.cloud.zookeeper.dependency.enabled", Boolean.class, false);
+		Boolean dependenciesEnabled = context.getEnvironment().getProperty(
+				"spring.cloud.zookeeper.dependency.enabled", Boolean.class, false);
 		if (dependenciesEnabled) {
-			return ConditionOutcome.match("Dependencies are not defined in configuration, but switch is turned on");
+			return ConditionOutcome.match(
+					"Dependencies are not defined in configuration, but switch is turned on");
 		}
-		return ConditionOutcome.noMatch("No dependencies have been passed for the service");
+		return ConditionOutcome
+				.noMatch("No dependencies have been passed for the service");
 	}
 
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/DependencyEnvironmentPostProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,10 +27,10 @@ import org.springframework.core.env.MapPropertySource;
 import org.springframework.util.StringUtils;
 
 /**
- * EnvironmentPostProcessor that sets spring.application.name.
- * Specifically, if spring.application.name doesn't contain a / and
- * spring.cloud.zookeeper.prefix has text, it sets spring.application.name
- * to /${spring.cloud.zookeeper.prefix}/${spring.application.name}
+ * EnvironmentPostProcessor that sets spring.application.name. Specifically, if
+ * spring.application.name doesn't contain a / and spring.cloud.zookeeper.prefix has text,
+ * it sets spring.application.name to
+ * /${spring.cloud.zookeeper.prefix}/${spring.application.name}
  *
  * @author Spencer Gibb
  * @since 1.0.0
@@ -41,11 +41,13 @@ public class DependencyEnvironmentPostProcessor
 	// after ConfigFileEnvironmentPostProcessorr
 	private int order = ConfigFileApplicationListener.DEFAULT_ORDER + 1;
 
-	@Override public int getOrder() {
+	@Override
+	public int getOrder() {
 		return this.order;
 	}
 
-	@Override public void postProcessEnvironment(ConfigurableEnvironment environment,
+	@Override
+	public void postProcessEnvironment(ConfigurableEnvironment environment,
 			SpringApplication application) {
 		String appName = environment.getProperty("spring.application.name");
 		if (StringUtils.hasText(appName) && !appName.contains("/")) {
@@ -61,11 +63,12 @@ public class DependencyEnvironmentPostProcessor
 				}
 				prefixedName.append(appName);
 				MapPropertySource propertySource = new MapPropertySource(
-						"zookeeperDependencyEnvironment", Collections
-						.singletonMap("spring.application.name",
+						"zookeeperDependencyEnvironment",
+						Collections.singletonMap("spring.application.name",
 								(Object) prefixedName.toString()));
 				environment.getPropertySources().addFirst(propertySource);
 			}
 		}
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/DependencyFeignClientAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,27 +23,27 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 
+import feign.Client;
+import feign.Request;
+import feign.Response;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.cloud.netflix.ribbon.RibbonAutoConfiguration;
+import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
 import org.springframework.cloud.openfeign.ribbon.CachingSpringLoadBalancerFactory;
 import org.springframework.cloud.openfeign.ribbon.FeignRibbonClientAutoConfiguration;
 import org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient;
-import org.springframework.cloud.netflix.ribbon.RibbonAutoConfiguration;
-import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
 import org.springframework.cloud.zookeeper.ConditionalOnZookeeperEnabled;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
 
-import feign.Client;
-import feign.Request;
-import feign.Response;
-
 /**
- * Configuration for ensuring that headers are set for a given dependency when
- * Feign is used.
+ * Configuration for ensuring that headers are set for a given dependency when Feign is
+ * used.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
@@ -53,32 +53,40 @@ import feign.Response;
 @ConditionalOnZookeeperEnabled
 @ConditionalOnProperty(value = "spring.cloud.zookeeper.dependency.headers.enabled", matchIfMissing = true)
 @ConditionalOnClass({ Client.class, LoadBalancerFeignClient.class })
-@AutoConfigureAfter({ RibbonAutoConfiguration.class, FeignRibbonClientAutoConfiguration.class })
+@AutoConfigureAfter({ RibbonAutoConfiguration.class,
+		FeignRibbonClientAutoConfiguration.class })
 public class DependencyFeignClientAutoConfiguration {
-	@Autowired(required = false) private LoadBalancerFeignClient ribbonClient;
-	@Autowired private ZookeeperDependencies zookeeperDependencies;
-	@Autowired private CachingSpringLoadBalancerFactory loadBalancerFactory;
-	@Autowired private SpringClientFactory springClientFactory;
+
+	@Autowired(required = false)
+	private LoadBalancerFeignClient ribbonClient;
+
+	@Autowired
+	private ZookeeperDependencies zookeeperDependencies;
+
+	@Autowired
+	private CachingSpringLoadBalancerFactory loadBalancerFactory;
+
+	@Autowired
+	private SpringClientFactory springClientFactory;
 
 	@Bean
 	@Primary
 	Client dependencyBasedFeignClient() {
-		return new LoadBalancerFeignClient(
-				new Client.Default(null, null), this.loadBalancerFactory, this.springClientFactory) {
+		return new LoadBalancerFeignClient(new Client.Default(null, null),
+				this.loadBalancerFactory, this.springClientFactory) {
 
 			@Override
 			public Response execute(Request request, Request.Options options)
 					throws IOException {
 				URI asUri = URI.create(request.url());
 				String clientName = asUri.getHost();
-				ZookeeperDependency dependencyForAlias =
-						DependencyFeignClientAutoConfiguration.this.zookeeperDependencies
+				ZookeeperDependency dependencyForAlias = DependencyFeignClientAutoConfiguration.this.zookeeperDependencies
 						.getDependencyForAlias(clientName);
 				Map<String, Collection<String>> headers = getUpdatedHeadersIfPossible(
 						request, dependencyForAlias);
 				if (DependencyFeignClientAutoConfiguration.this.ribbonClient != null) {
-					return DependencyFeignClientAutoConfiguration.this.ribbonClient.execute(
-							request(request, headers), options);
+					return DependencyFeignClientAutoConfiguration.this.ribbonClient
+							.execute(request(request, headers), options);
 				}
 				return super.execute(request(request, headers), options);
 			}

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/DependencyRestTemplateAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+
 import javax.annotation.PostConstruct;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -52,33 +53,45 @@ import org.springframework.web.client.RestTemplate;
 @AutoConfigureAfter(DependencyRibbonAutoConfiguration.class)
 public class DependencyRestTemplateAutoConfiguration {
 
-	@Autowired @LoadBalanced RestTemplate restTemplate;
-	@Autowired ZookeeperDependencies zookeeperDependencies;
+	@Autowired
+	@LoadBalanced
+	RestTemplate restTemplate;
+
+	@Autowired
+	ZookeeperDependencies zookeeperDependencies;
 
 	@PostConstruct
 	void customizeRestTemplate() {
 		this.restTemplate.getInterceptors().add(new ClientHttpRequestInterceptor() {
 			@Override
-			public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
+			public ClientHttpResponse intercept(HttpRequest request, byte[] body,
+					ClientHttpRequestExecution execution) throws IOException {
 				String clientName = request.getURI().getHost();
-				ZookeeperDependency dependencyForAlias = DependencyRestTemplateAutoConfiguration.this.zookeeperDependencies.getDependencyForAlias(clientName);
-				HttpHeaders headers = getUpdatedHeadersIfPossible(request, dependencyForAlias);
+				ZookeeperDependency dependencyForAlias = DependencyRestTemplateAutoConfiguration.this.zookeeperDependencies
+						.getDependencyForAlias(clientName);
+				HttpHeaders headers = getUpdatedHeadersIfPossible(request,
+						dependencyForAlias);
 				request.getHeaders().putAll(headers);
 				return execution.execute(request, body);
 			}
 
-			private HttpHeaders getUpdatedHeadersIfPossible(HttpRequest request, ZookeeperDependency dependencyForAlias) {
+			private HttpHeaders getUpdatedHeadersIfPossible(HttpRequest request,
+					ZookeeperDependency dependencyForAlias) {
 				HttpHeaders httpHeaders = new HttpHeaders();
 				if (dependencyForAlias != null) {
-					Map<String, Collection<String>> updatedHeaders = dependencyForAlias.getUpdatedHeaders(convertHeadersFromListToCollection(request.getHeaders()));
-					httpHeaders.putAll(convertHeadersFromCollectionToList(updatedHeaders));
+					Map<String, Collection<String>> updatedHeaders = dependencyForAlias
+							.getUpdatedHeaders(convertHeadersFromListToCollection(
+									request.getHeaders()));
+					httpHeaders
+							.putAll(convertHeadersFromCollectionToList(updatedHeaders));
 					return httpHeaders;
 				}
 				httpHeaders.putAll(request.getHeaders());
 				return httpHeaders;
 			}
 
-			private Map<String, Collection<String>> convertHeadersFromListToCollection(HttpHeaders headers) {
+			private Map<String, Collection<String>> convertHeadersFromListToCollection(
+					HttpHeaders headers) {
 				Map<String, Collection<String>> transformedHeaders = new HashMap<>();
 				for (Map.Entry<String, List<String>> entry : headers.entrySet()) {
 					transformedHeaders.put(entry.getKey(), entry.getValue());
@@ -86,10 +99,12 @@ public class DependencyRestTemplateAutoConfiguration {
 				return transformedHeaders;
 			}
 
-			private Map<String, List<String>> convertHeadersFromCollectionToList(Map<String, Collection<String>> headers) {
+			private Map<String, List<String>> convertHeadersFromCollectionToList(
+					Map<String, Collection<String>> headers) {
 				Map<String, List<String>> transformedHeaders = new HashMap<>();
 				for (Map.Entry<String, Collection<String>> entry : headers.entrySet()) {
-					transformedHeaders.put(entry.getKey(), new ArrayList<>(entry.getValue()));
+					transformedHeaders.put(entry.getKey(),
+							new ArrayList<>(entry.getValue()));
 				}
 				return transformedHeaders;
 			}

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/DependencyRibbonAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,9 +18,9 @@ package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import com.netflix.loadbalancer.ILoadBalancer;
 import com.netflix.loadbalancer.Server;
-
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
@@ -38,7 +38,7 @@ import org.springframework.context.annotation.Configuration;
 /**
  *
  * Provides LoadBalancerClient that at runtime can pick proper load balancing strategy
- * basing on the Zookeeper dependencies from properties
+ * basing on the Zookeeper dependencies from properties.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
@@ -50,25 +50,33 @@ import org.springframework.context.annotation.Configuration;
 @AutoConfigureBefore(RibbonAutoConfiguration.class)
 public class DependencyRibbonAutoConfiguration {
 
-	private static final Log log = LogFactory.getLog(DependencyRibbonAutoConfiguration.class);
+	private static final Log log = LogFactory
+			.getLog(DependencyRibbonAutoConfiguration.class);
 
-	@Autowired ApplicationContext applicationContext;
+	@Autowired
+	ApplicationContext applicationContext;
 
 	@Bean
 	@ConditionalOnMissingBean
 	@ConditionalOnProperty(value = "spring.cloud.zookeeper.dependency.ribbon.enabled", matchIfMissing = true)
-	public LoadBalancerClient loadBalancerClient(SpringClientFactory springClientFactory) {
+	public LoadBalancerClient loadBalancerClient(
+			SpringClientFactory springClientFactory) {
 		return new RibbonLoadBalancerClient(springClientFactory) {
 			@Override
 			protected Server getServer(String serviceId) {
 				ILoadBalancer loadBalancer = this.getLoadBalancer(serviceId);
-				return loadBalancer == null ? null : chooseServerByServiceIdOrDefault(loadBalancer, serviceId);
+				return loadBalancer == null ? null
+						: chooseServerByServiceIdOrDefault(loadBalancer, serviceId);
 			}
 
-			private Server chooseServerByServiceIdOrDefault(ILoadBalancer loadBalancer, String serviceId) {
-				log.debug(String.format("Dependencies are set - will try to load balance via provided load balancer [%s] for key [%s]", loadBalancer, serviceId));
+			private Server chooseServerByServiceIdOrDefault(ILoadBalancer loadBalancer,
+					String serviceId) {
+				log.debug(String.format(
+						"Dependencies are set - will try to load balance via provided load balancer [%s] for key [%s]",
+						loadBalancer, serviceId));
 				Server server = loadBalancer.chooseServer(serviceId);
-				log.debug(String.format("Retrieved server [%s] via load balancer", server));
+				log.debug(
+						String.format("Retrieved server [%s] via load balancer", server));
 				return server != null ? server : loadBalancer.chooseServer("default");
 			}
 		};

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/LoadBalancerType.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 /**
@@ -21,5 +22,10 @@ package org.springframework.cloud.zookeeper.discovery.dependency;
  * @since 1.0.0
  */
 public enum LoadBalancerType {
+
+	/**
+	 * Valid load balancer types.
+	 */
 	STICKY, RANDOM, ROUND_ROBIN
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/StickyRule.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,7 +24,6 @@ import com.netflix.client.config.IClientConfig;
 import com.netflix.loadbalancer.AbstractLoadBalancerRule;
 import com.netflix.loadbalancer.IRule;
 import com.netflix.loadbalancer.Server;
-
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
@@ -37,9 +36,13 @@ import org.apache.commons.logging.LogFactory;
  * @since 1.0.0
  */
 public class StickyRule extends AbstractLoadBalancerRule {
+
 	private static final Log log = LogFactory.getLog(StickyRule.class);
+
 	private final IRule masterStrategy;
+
 	private final AtomicReference<Server> ourInstance = new AtomicReference<>(null);
+
 	private final AtomicInteger instanceNumber = new AtomicInteger(-1);
 
 	public StickyRule(IRule masterStrategy) {
@@ -70,10 +73,10 @@ public class StickyRule extends AbstractLoadBalancerRule {
 	}
 
 	/**
-	 * Each time a new instance is picked, an internal counter is incremented. This way you
-	 * can track when/if the instance changes. The instance can change when the selected instance
-	 * is not in the current list of instances returned by the instance provider
-	 *
+	 * Each time a new instance is picked, an internal counter is incremented. This way
+	 * you can track when/if the instance changes. The instance can change when the
+	 * selected instance is not in the current list of instances returned by the instance
+	 * provider
 	 * @return instance number
 	 */
 	public int getInstanceNumber() {

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/StubsConfiguration.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import java.util.Arrays;
@@ -12,29 +28,38 @@ import org.springframework.util.StringUtils;
  * @since 1.0.0
  */
 public class StubsConfiguration {
+
 	private static final String DEFAULT_STUBS_CLASSIFIER = "stubs";
+
 	private static final String STUB_COLON_DELIMITER = ":";
+
 	private static final String PATH_SLASH_DELIMITER = "/";
 
 	private final String stubsGroupId;
+
 	private final String stubsArtifactId;
+
 	private final String stubsClassifier;
 
-	public StubsConfiguration(String stubsGroupId, String stubsArtifactId, String stubsClassifier) {
+	public StubsConfiguration(String stubsGroupId, String stubsArtifactId,
+			String stubsClassifier) {
 		this.stubsGroupId = stubsGroupId;
 		this.stubsArtifactId = stubsArtifactId;
-		this.stubsClassifier = StringUtils.hasText(stubsClassifier) ? stubsClassifier : DEFAULT_STUBS_CLASSIFIER;
+		this.stubsClassifier = StringUtils.hasText(stubsClassifier) ? stubsClassifier
+				: DEFAULT_STUBS_CLASSIFIER;
 	}
 
 	public StubsConfiguration(String stubPath) {
-		String[] parsedPath = parsedStubPathEmptyByDefault(stubPath, STUB_COLON_DELIMITER);
+		String[] parsedPath = parsedStubPathEmptyByDefault(stubPath,
+				STUB_COLON_DELIMITER);
 		this.stubsGroupId = parsedPath[0];
 		this.stubsArtifactId = parsedPath[1];
 		this.stubsClassifier = parsedPath[2];
 	}
 
 	public StubsConfiguration(DependencyPath path) {
-		String[] parsedPath = parsedDependencyPathEmptyByDefault(path.getPath(), PATH_SLASH_DELIMITER);
+		String[] parsedPath = parsedDependencyPathEmptyByDefault(path.getPath(),
+				PATH_SLASH_DELIMITER);
 		this.stubsGroupId = parsedPath[0];
 		this.stubsArtifactId = parsedPath[1];
 		this.stubsClassifier = parsedPath[2];
@@ -48,9 +73,10 @@ public class StubsConfiguration {
 		if (splitPath.length >= 2) {
 			stubsGroupId = splitPath[0];
 			stubsArtifactId = splitPath[1];
-			stubsClassifier = splitPath.length == 3 ? splitPath[2] : DEFAULT_STUBS_CLASSIFIER;
+			stubsClassifier = splitPath.length == 3 ? splitPath[2]
+					: DEFAULT_STUBS_CLASSIFIER;
 		}
-		return new String[]{stubsGroupId, stubsArtifactId, stubsClassifier};
+		return new String[] { stubsGroupId, stubsArtifactId, stubsClassifier };
 	}
 
 	private String[] parsedDependencyPathEmptyByDefault(String path, String delimiter) {
@@ -66,18 +92,20 @@ public class StubsConfiguration {
 			stubsArtifactId = lastElement;
 			stubsClassifier = DEFAULT_STUBS_CLASSIFIER;
 		}
-		return new String[]{stubsGroupId, stubsArtifactId, stubsClassifier};
+		return new String[] { stubsGroupId, stubsArtifactId, stubsClassifier };
 	}
 
 	private boolean isDefined() {
-		return StringUtils.hasText(this.stubsGroupId) && StringUtils.hasText(this.stubsArtifactId);
+		return StringUtils.hasText(this.stubsGroupId)
+				&& StringUtils.hasText(this.stubsArtifactId);
 	}
 
 	public String toColonSeparatedDependencyNotation() {
-		if(!isDefined()) {
+		if (!isDefined()) {
 			return "";
 		}
-		return StringUtils.collectionToDelimitedString(Arrays.asList(getStubsGroupId(), getStubsArtifactId(), getStubsClassifier()), STUB_COLON_DELIMITER);
+		return StringUtils.collectionToDelimitedString(Arrays.asList(getStubsGroupId(),
+				getStubsArtifactId(), getStubsClassifier()), STUB_COLON_DELIMITER);
 	}
 
 	public String getStubsGroupId() {
@@ -93,9 +121,10 @@ public class StubsConfiguration {
 	}
 
 	/**
-	 * Marker class to discern between the stubs location and dependency registration path
+	 * Marker class to discern between the stubs location and dependency registration path.
 	 */
-	static class DependencyPath {
+	public static class DependencyPath {
+
 		private final String path;
 
 		public DependencyPath(String path) {
@@ -105,5 +134,7 @@ public class StubsConfiguration {
 		public String getPath() {
 			return this.path;
 		}
+
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/ZookeeperDependencies.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
-import javax.annotation.PostConstruct;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
+import javax.annotation.PostConstruct;
+
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.cloud.zookeeper.discovery.dependency.StubsConfiguration.DependencyPath;
@@ -30,7 +32,7 @@ import org.springframework.util.StringUtils;
 import static org.springframework.cloud.zookeeper.discovery.DependencyPathUtils.sanitize;
 
 /**
- * Representation of this service's dependencies in Zookeeper
+ * Representation of this service's dependencies in Zookeeper.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
@@ -39,18 +41,18 @@ import static org.springframework.cloud.zookeeper.discovery.DependencyPathUtils.
 public class ZookeeperDependencies {
 
 	/**
-	 * Common prefix that will be applied to all Zookeeper dependencies' paths
+	 * Common prefix that will be applied to all Zookeeper dependencies' paths.
 	 */
 	private String prefix = "";
 
 	/**
-	 * Mapping of alias to ZookeeperDependency. From Ribbon perspective the alias
-	 * is actually serviceID since Ribbon can't accept nested structures in serviceID
+	 * Mapping of alias to ZookeeperDependency. From Ribbon perspective the alias is
+	 * actually serviceID since Ribbon can't accept nested structures in serviceID.
 	 */
 	private Map<String, ZookeeperDependency> dependencies = new LinkedHashMap<>();
 
 	/**
-	 * Default health endpoint that will be checked to verify that a dependency is alive
+	 * Default health endpoint that will be checked to verify that a dependency is alive.
 	 */
 	@Value("${spring.cloud.zookeeper.dependency.ribbon.loadbalancer.defaulthealthendpoint:/health}")
 	private String defaultHealthEndpoint;
@@ -60,7 +62,8 @@ public class ZookeeperDependencies {
 		if (StringUtils.hasText(this.prefix)) {
 			this.prefix = sanitize(this.prefix);
 		}
-		for (Map.Entry<String, ZookeeperDependency> entry : this.dependencies.entrySet()) {
+		for (Map.Entry<String, ZookeeperDependency> entry : this.dependencies
+				.entrySet()) {
 			ZookeeperDependency value = entry.getValue();
 
 			if (!StringUtils.hasText(value.getPath())) {
@@ -79,8 +82,10 @@ public class ZookeeperDependencies {
 
 	private void setStubDefinition(ZookeeperDependency value) {
 		if (!StringUtils.hasText(value.getStubs())) {
-			value.setStubsConfiguration(new StubsConfiguration(new DependencyPath(value.getPath())));
-		} else {
+			value.setStubsConfiguration(
+					new StubsConfiguration(new DependencyPath(value.getPath())));
+		}
+		else {
 			value.setStubsConfiguration(new StubsConfiguration(value.getStubs()));
 		}
 	}
@@ -94,7 +99,8 @@ public class ZookeeperDependencies {
 	}
 
 	public ZookeeperDependency getDependencyForPath(final String path) {
-		for (Map.Entry<String, ZookeeperDependency> zookeeperDependencyEntry : this.dependencies.entrySet()) {
+		for (Map.Entry<String, ZookeeperDependency> zookeeperDependencyEntry : this.dependencies
+				.entrySet()) {
 			if (zookeeperDependencyEntry.getValue().getPath().equals(path)) {
 				return zookeeperDependencyEntry.getValue();
 			}
@@ -103,7 +109,8 @@ public class ZookeeperDependencies {
 	}
 
 	public ZookeeperDependency getDependencyForAlias(final String alias) {
-		for (Map.Entry<String, ZookeeperDependency> zookeeperDependencyEntry : this.dependencies.entrySet()) {
+		for (Map.Entry<String, ZookeeperDependency> zookeeperDependencyEntry : this.dependencies
+				.entrySet()) {
 			if (zookeeperDependencyEntry.getKey().equals(alias)) {
 				return zookeeperDependencyEntry.getValue();
 			}
@@ -120,7 +127,8 @@ public class ZookeeperDependencies {
 	}
 
 	public String getAliasForPath(final String path) {
-		for (Map.Entry<String, ZookeeperDependency> zookeeperDependencyEntry : this.dependencies.entrySet()) {
+		for (Map.Entry<String, ZookeeperDependency> zookeeperDependencyEntry : this.dependencies
+				.entrySet()) {
 			if (zookeeperDependencyEntry.getValue().getPath().equals(path)) {
 				return zookeeperDependencyEntry.getKey();
 			}
@@ -130,7 +138,8 @@ public class ZookeeperDependencies {
 
 	public Collection<String> getDependencyNames() {
 		List<String> names = new ArrayList<>();
-		for (Map.Entry<String, ZookeeperDependency> zookeeperDependencyEntry : this.dependencies.entrySet()) {
+		for (Map.Entry<String, ZookeeperDependency> zookeeperDependencyEntry : this.dependencies
+				.entrySet()) {
 			names.add(zookeeperDependencyEntry.getValue().getPath());
 		}
 		return names;
@@ -165,8 +174,10 @@ public class ZookeeperDependencies {
 		final StringBuffer sb = new StringBuffer("ZookeeperDependencies{");
 		sb.append("prefix='").append(this.prefix).append('\'');
 		sb.append(", dependencies=").append(this.dependencies);
-		sb.append(", defaultHealthEndpoint='").append(this.defaultHealthEndpoint).append('\'');
+		sb.append(", defaultHealthEndpoint='").append(this.defaultHealthEndpoint)
+				.append('\'');
 		sb.append('}');
 		return sb.toString();
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/ZookeeperDependenciesAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/dependency/ZookeeperDependency.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,58 +34,64 @@ import static java.util.Collections.singletonList;
 public class ZookeeperDependency {
 
 	private static final String VERSION_PLACEHOLDER_REGEX = "\\$version";
+
 	private static final String CONTENT_TYPE_HEADER = "Content-Type";
 
 	/**
 	 * Path under which the dependency is registered in Zookeeper. The common prefix
-	 * {@link ZookeeperDependencies#prefix} will be applied to this path
+	 * {@link ZookeeperDependencies#prefix} will be applied to this path.
 	 */
 	private String path;
 
 	/**
-	 * Type of load balancer that should be used for this particular dependency
+	 * Type of load balancer that should be used for this particular dependency.
 	 */
 	private LoadBalancerType loadBalancerType = LoadBalancerType.ROUND_ROBIN;
 
 	/**
-	 * Content type template with {@code $version} placeholder which will be filled
-	 * by the {@link ZookeeperDependency#version} variable.
+	 * Content type template with {@code $version} placeholder which will be filled by the
+	 * {@link ZookeeperDependency#version} variable.
 	 * <p/>
 	 * e.g. {@code 'application/vnd.some-service.$version+json'}
 	 */
 	private String contentTypeTemplate = "";
 
 	/**
-	 * Provide the current version number of the dependency. This version will be placed under the
-	 * {@code $version} placeholder in {@link ZookeeperDependency#contentTypeTemplate}
+	 * Provide the current version number of the dependency. This version will be placed
+	 * under the {@code $version} placeholder in
+	 * {@link ZookeeperDependency#contentTypeTemplate}.
 	 */
 	private String version = "";
 
 	/**
-	 * You can provide a map of default headers that should be attached when sending a message to the dependency
+	 * You can provide a map of default headers that should be attached when sending a
+	 * message to the dependency.
 	 */
 	private Map<String, Collection<String>> headers = new HashMap<>();
 
 	/**
-	 * If set to true - if the dependency is not present on startup then the application will not boot successfully
+	 * If set to true - if the dependency is not present on startup then the application
+	 * will not boot successfully.
 	 * <p/>
-	 * {@link org.springframework.cloud.zookeeper.discovery.watcher.presence.DependencyPresenceOnStartupVerifier;}
+	 * {@link org.springframework.cloud.zookeeper.discovery.watcher.presence.DependencyPresenceOnStartupVerifier}
 	 * {@link org.springframework.cloud.zookeeper.discovery.watcher.DefaultDependencyWatcher}
 	 */
 	private boolean required;
 
 	/**
-	 * Colon separated notation of the stubs. E.g. {@code org.springframework:zookeeper-sample:stubs}. If not provided
-	 * the {@code path} will be parsed to try to split it into groupId and artifactId. If not provided the classifier
-	 * will by default equal {@code stubs}
+	 * Colon separated notation of the stubs. E.g.
+	 * {@code org.springframework:zookeeper-sample:stubs}. If not provided the
+	 * {@code path} will be parsed to try to split it into groupId and artifactId. If not
+	 * provided the classifier will by default equal {@code stubs}
 	 */
 	private String stubs;
 
 	public ZookeeperDependency() {
 	}
 
-	public ZookeeperDependency(String path, LoadBalancerType loadBalancerType, String contentTypeTemplate,
-			String version, Map<String, Collection<String>> headers, boolean required, String stubs) {
+	public ZookeeperDependency(String path, LoadBalancerType loadBalancerType,
+			String contentTypeTemplate, String version,
+			Map<String, Collection<String>> headers, boolean required, String stubs) {
 		this.path = path;
 		this.loadBalancerType = loadBalancerType;
 		this.contentTypeTemplate = contentTypeTemplate;
@@ -96,7 +102,7 @@ public class ZookeeperDependency {
 	}
 
 	/**
-	 * Parsed stubs path
+	 * Parsed stubs path.
 	 */
 	private StubsConfiguration stubsConfiguration;
 
@@ -107,8 +113,10 @@ public class ZookeeperDependency {
 	}
 
 	/**
-	 * Function that will replace the placeholder {@link ZookeeperDependency#VERSION_PLACEHOLDER_REGEX} from the
-	 * {@link ZookeeperDependency#contentTypeTemplate} with value from {@link ZookeeperDependency#version}.
+	 * Function that will replace the placeholder
+	 * {@link ZookeeperDependency#VERSION_PLACEHOLDER_REGEX} from the
+	 * {@link ZookeeperDependency#contentTypeTemplate} with value from
+	 * {@link ZookeeperDependency#version}.
 	 * <p/>
 	 * <p>
 	 * e.g. having:
@@ -117,17 +125,19 @@ public class ZookeeperDependency {
 	 * </p>
 	 * <p/>
 	 * the result of the function will be {@code 'application/vnd.some-service.v1+json'}
-	 *
 	 * @return content type template with version
 	 */
 	public String getContentTypeWithVersion() {
-		if (!StringUtils.hasText(this.contentTypeTemplate) || !StringUtils.hasText(this.version)) {
+		if (!StringUtils.hasText(this.contentTypeTemplate)
+				|| !StringUtils.hasText(this.version)) {
 			return "";
 		}
-		return this.contentTypeTemplate.replaceAll(VERSION_PLACEHOLDER_REGEX, this.version);
+		return this.contentTypeTemplate.replaceAll(VERSION_PLACEHOLDER_REGEX,
+				this.version);
 	}
 
-	public Map<String, Collection<String>> getUpdatedHeaders(Map<String, Collection<String>> headers) {
+	public Map<String, Collection<String>> getUpdatedHeaders(
+			Map<String, Collection<String>> headers) {
 		Map<String, Collection<String>> newHeaders = new HashMap<>(headers);
 		if (hasContentTypeTemplate()) {
 			setContentTypeFromTemplate(newHeaders);
@@ -142,7 +152,8 @@ public class ZookeeperDependency {
 		Collection<String> contentTypes = headers.get(CONTENT_TYPE_HEADER);
 		if (contentTypes == null || contentTypes.isEmpty()) {
 			headers.put(CONTENT_TYPE_HEADER, singletonList(getContentTypeWithVersion()));
-		} else {
+		}
+		else {
 			contentTypes.add(getContentTypeWithVersion());
 		}
 	}
@@ -152,7 +163,8 @@ public class ZookeeperDependency {
 			Collection<String> value = newHeaders.get(entry.getKey());
 			if (value == null || value.isEmpty()) {
 				newHeaders.put(entry.getKey(), entry.getValue());
-			} else {
+			}
+			else {
 				value.addAll(entry.getValue());
 			}
 		}
@@ -235,7 +247,8 @@ public class ZookeeperDependency {
 		final StringBuffer sb = new StringBuffer("ZookeeperDependency{");
 		sb.append("path='").append(this.path).append('\'');
 		sb.append(", loadBalancerType=").append(this.loadBalancerType);
-		sb.append(", contentTypeTemplate='").append(this.contentTypeTemplate).append('\'');
+		sb.append(", contentTypeTemplate='").append(this.contentTypeTemplate)
+				.append('\'');
 		sb.append(", version='").append(this.version).append('\'');
 		sb.append(", headers=").append(this.headers);
 		sb.append(", required=").append(this.required);
@@ -244,4 +257,5 @@ public class ZookeeperDependency {
 		sb.append('}');
 		return sb.toString();
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/DefaultDependencyWatcher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher;
 
 import java.io.IOException;
@@ -22,6 +23,7 @@ import java.util.concurrent.ConcurrentHashMap;
 
 import org.apache.curator.x.discovery.ServiceCache;
 import org.apache.curator.x.discovery.ServiceDiscovery;
+
 import org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent;
 import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
 import org.springframework.cloud.zookeeper.discovery.dependency.ZookeeperDependencies;
@@ -31,28 +33,33 @@ import org.springframework.context.ApplicationListener;
 import org.springframework.util.ReflectionUtils;
 
 /**
- * This Dependency Watcher will verify the presence of dependencies upon startup and registers listeners
- * to changing of state of dependencies during the application's lifecycle.
+ * This Dependency Watcher will verify the presence of dependencies upon startup and
+ * registers listeners to changing of state of dependencies during the application's
+ * lifecycle.
  *
  * @author Marcin Grzejszczak
  * @author Michal Chmielarz, 4financeIT
  * @since 1.0.0
- *
  * @see DependencyPresenceOnStartupVerifier
  * @see DependencyWatcherListener
  */
-public class DefaultDependencyWatcher implements DependencyRegistrationHookProvider, ApplicationListener<InstanceRegisteredEvent<?>> {
+public class DefaultDependencyWatcher implements DependencyRegistrationHookProvider,
+		ApplicationListener<InstanceRegisteredEvent<?>> {
 
 	private final Map<String, ServiceCache<?>> dependencyRegistry = new ConcurrentHashMap<>();
+
 	private final List<DependencyWatcherListener> listeners;
+
 	private ServiceDiscovery<ZookeeperInstance> serviceDiscovery;
+
 	private final DependencyPresenceOnStartupVerifier dependencyPresenceOnStartupVerifier;
+
 	private final ZookeeperDependencies zookeeperDependencies;
 
 	public DefaultDependencyWatcher(ServiceDiscovery<ZookeeperInstance> serviceDiscovery,
-									DependencyPresenceOnStartupVerifier dependencyPresenceOnStartupVerifier,
-									List<DependencyWatcherListener> dependencyWatcherListeners,
-									ZookeeperDependencies zookeeperDependencies) {
+			DependencyPresenceOnStartupVerifier dependencyPresenceOnStartupVerifier,
+			List<DependencyWatcherListener> dependencyWatcherListeners,
+			ZookeeperDependencies zookeeperDependencies) {
 		this.serviceDiscovery = serviceDiscovery;
 		this.dependencyPresenceOnStartupVerifier = dependencyPresenceOnStartupVerifier;
 		this.listeners = dependencyWatcherListeners;
@@ -66,19 +73,22 @@ public class DefaultDependencyWatcher implements DependencyRegistrationHookProvi
 
 	@Override
 	public void registerDependencyRegistrationHooks() {
-		for (ZookeeperDependency zookeeperDependency : this.zookeeperDependencies.getDependencyConfigurations()) {
+		for (ZookeeperDependency zookeeperDependency : this.zookeeperDependencies
+				.getDependencyConfigurations()) {
 			String dependencyPath = zookeeperDependency.getPath();
-			ServiceCache<?> serviceCache = getServiceDiscovery()
-					.serviceCacheBuilder().name(dependencyPath).build();
+			ServiceCache<?> serviceCache = getServiceDiscovery().serviceCacheBuilder()
+					.name(dependencyPath).build();
 			try {
 				serviceCache.start();
 			}
 			catch (Exception e) {
 				ReflectionUtils.rethrowRuntimeException(e);
 			}
-			this.dependencyPresenceOnStartupVerifier.verifyDependencyPresence(dependencyPath, serviceCache, zookeeperDependency.isRequired());
+			this.dependencyPresenceOnStartupVerifier.verifyDependencyPresence(
+					dependencyPath, serviceCache, zookeeperDependency.isRequired());
 			this.dependencyRegistry.put(dependencyPath, serviceCache);
-			serviceCache.addListener(new DependencyStateChangeListenerRegistry(this.listeners, dependencyPath, serviceCache));
+			serviceCache.addListener(new DependencyStateChangeListenerRegistry(
+					this.listeners, dependencyPath, serviceCache));
 		}
 	}
 

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/DependencyRegistrationHookProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,13 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher;
 
 import java.io.IOException;
 
 /**
- * Implementations of this interface are required to register dependency registration hooks
- * on startup and their cleaning upon application context shutdown.
+ * Implementations of this interface are required to register dependency registration
+ * hooks on startup and their cleaning upon application context shutdown.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
@@ -27,16 +28,14 @@ import java.io.IOException;
 public interface DependencyRegistrationHookProvider {
 
 	/**
-	 * Register hooks upon dependencies registration
-	 *
-	 * @throws Exception
+	 * Register hooks upon dependencies registration.
+	 * @throws Exception if registration fails.
 	 */
 	void registerDependencyRegistrationHooks() throws Exception;
 
 	/**
-	 * Unregister hooks upon dependencies registration
-	 *
-	 * @throws IOException
+	 * Unregister hooks upon dependencies registration.
+	 * @throws IOException if clearing fails.
 	 */
 	void clearDependencyRegistrationHooks() throws IOException;
 

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/DependencyState.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,16 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher;
 
 /**
- *
- * Represents a dependency's Zookeeper connection state
+ * Represents a dependency's Zookeeper connection state.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
  */
 public enum DependencyState {
-	CONNECTED,
-	DISCONNECTED
+
+	/**
+	 * valid states.
+	 */
+	CONNECTED, DISCONNECTED
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/DependencyStateChangeListenerRegistry.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher;
 
 import java.util.List;
@@ -25,7 +26,7 @@ import org.apache.curator.x.discovery.ServiceCache;
 import org.apache.curator.x.discovery.details.ServiceCacheListener;
 
 /**
- * Informs all the DependencyWatcherListeners that a dependency's state has changed
+ * Informs all the DependencyWatcherListeners that a dependency's state has changed.
  *
  * @author Marcin Grzejszczak
  * @author Tomasz Nurkiewicz, 4financeIT
@@ -33,13 +34,18 @@ import org.apache.curator.x.discovery.details.ServiceCacheListener;
  */
 public class DependencyStateChangeListenerRegistry implements ServiceCacheListener {
 
-	private static final Log log = LogFactory.getLog(DependencyStateChangeListenerRegistry.class);
+	private static final Log log = LogFactory
+			.getLog(DependencyStateChangeListenerRegistry.class);
 
 	private final List<DependencyWatcherListener> listeners;
+
 	private final String dependencyName;
+
 	private final ServiceCache<?> serviceCache;
 
-	public DependencyStateChangeListenerRegistry(List<DependencyWatcherListener> listeners, String dependencyName, ServiceCache<?> serviceCache) {
+	public DependencyStateChangeListenerRegistry(
+			List<DependencyWatcherListener> listeners, String dependencyName,
+			ServiceCache<?> serviceCache) {
 		this.listeners = listeners;
 		this.dependencyName = dependencyName;
 		this.serviceCache = serviceCache;
@@ -47,13 +53,15 @@ public class DependencyStateChangeListenerRegistry implements ServiceCacheListen
 
 	@Override
 	public void cacheChanged() {
-		DependencyState state = this.serviceCache.getInstances().isEmpty() ? DependencyState.DISCONNECTED : DependencyState.CONNECTED;
+		DependencyState state = this.serviceCache.getInstances().isEmpty()
+				? DependencyState.DISCONNECTED : DependencyState.CONNECTED;
 		logCurrentState(state);
 		informListeners(state);
 	}
 
 	private void logCurrentState(DependencyState dependencyState) {
-		log.info("Service cache state change for '"+this.dependencyName+"' instances, current service state: " + dependencyState);
+		log.info("Service cache state change for '" + this.dependencyName
+				+ "' instances, current service state: " + dependencyState);
 	}
 
 	private void informListeners(DependencyState state) {
@@ -66,4 +74,5 @@ public class DependencyStateChangeListenerRegistry implements ServiceCacheListen
 	public void stateChanged(CuratorFramework client, ConnectionState newState) {
 		// TODO do something or ignore for what is worth
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/DependencyWatcherAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,12 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher;
 
 import java.util.ArrayList;
 import java.util.List;
 
 import org.apache.curator.x.discovery.ServiceDiscovery;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
@@ -34,12 +36,11 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 /**
- * Provides hooks for observing dependency lifecycle in Zookeeper.
- * Needs custom dependencies to be set in order to work.
+ * Provides hooks for observing dependency lifecycle in Zookeeper. Needs custom
+ * dependencies to be set in order to work.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
- *
  * @see ZookeeperDependencies
  */
 @Configuration
@@ -65,8 +66,8 @@ public class DependencyWatcherAutoConfiguration {
 			DependencyPresenceOnStartupVerifier dependencyPresenceOnStartupVerifier,
 			ZookeeperDependencies zookeeperDependencies) {
 		return new DefaultDependencyWatcher(serviceDiscovery,
-				dependencyPresenceOnStartupVerifier,
-				this.dependencyWatcherListeners,
+				dependencyPresenceOnStartupVerifier, this.dependencyWatcherListeners,
 				zookeeperDependencies);
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/DependencyWatcherListener.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,24 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher;
 
 /**
- * Performs logic upon change of state of a dependency {@link DependencyState}
- * in the service discovery system.
+ * Performs logic upon change of state of a dependency {@link DependencyState} in the
+ * service discovery system.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
- *
  * @see org.springframework.cloud.zookeeper.discovery.dependency.ZookeeperDependencies
  */
 public interface DependencyWatcherListener {
 
 	/**
-	 * Method executed upon state change of a dependency
-	 *
+	 * Method executed upon state change of a dependency.
 	 * @param dependencyName - alias from microservice configuration
 	 * @param newState - new state of the dependency
 	 */
 	void stateChanged(String dependencyName, DependencyState newState);
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/presence/DefaultDependencyPresenceOnStartupVerifier.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,19 +13,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher.presence;
 
 /**
  * By default passes logging dependency checker in order not to shutdown the application
- * if dependency is missing
+ * if dependency is missing.
  *
  * @author Marcin Grzejszczak
- * @version 1.0.0
- *
  * @see LogMissingDependencyChecker
+ * @version 1.0.0
  */
-public class DefaultDependencyPresenceOnStartupVerifier extends DependencyPresenceOnStartupVerifier {
+public class DefaultDependencyPresenceOnStartupVerifier
+		extends DependencyPresenceOnStartupVerifier {
+
 	public DefaultDependencyPresenceOnStartupVerifier() {
 		super(new LogMissingDependencyChecker());
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/presence/DependencyPresenceOnStartupVerifier.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,37 +13,45 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher.presence;
 
 import org.apache.curator.x.discovery.ServiceCache;
 
 /**
- * Verifier that checks for presence of mandatory dependencies and delegates to an optional
- * presence checker verification of presence of optional dependencies.
+ * Verifier that checks for presence of mandatory dependencies and delegates to an
+ * optional presence checker verification of presence of optional dependencies.
  *
- * The default implementation of required dependencies will result in shutting down of the application
- * if the dependency is missing.
+ * The default implementation of required dependencies will result in shutting down of the
+ * application if the dependency is missing.
  *
  * @author Marcin Grzejszczak
  * @author Tomasz Szymanski, 4financeIT
- * @version 1.0.0
- *
  * @see FailOnMissingDependencyChecker
+ * @version 1.0.0
  */
 public abstract class DependencyPresenceOnStartupVerifier {
+
 	private static final PresenceChecker MANDATORY_DEPENDENCY_CHECKER = new FailOnMissingDependencyChecker();
+
 	private final PresenceChecker optionalDependencyChecker;
 
-	public DependencyPresenceOnStartupVerifier(PresenceChecker optionalDependencyChecker) {
+	public DependencyPresenceOnStartupVerifier(
+			PresenceChecker optionalDependencyChecker) {
 		this.optionalDependencyChecker = optionalDependencyChecker;
 	}
 
 	@SuppressWarnings("unchecked")
-	public void verifyDependencyPresence(String dependencyName, @SuppressWarnings("rawtypes") ServiceCache serviceCache, boolean required) {
+	public void verifyDependencyPresence(String dependencyName,
+			@SuppressWarnings("rawtypes") ServiceCache serviceCache, boolean required) {
 		if (required) {
-			MANDATORY_DEPENDENCY_CHECKER.checkPresence(dependencyName, serviceCache.getInstances());
-		} else {
-			this.optionalDependencyChecker.checkPresence(dependencyName, serviceCache.getInstances());
+			MANDATORY_DEPENDENCY_CHECKER.checkPresence(dependencyName,
+					serviceCache.getInstances());
+		}
+		else {
+			this.optionalDependencyChecker.checkPresence(dependencyName,
+					serviceCache.getInstances());
 		}
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/presence/FailOnMissingDependencyChecker.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher.presence;
 
 import java.util.List;
@@ -20,15 +21,18 @@ import java.util.List;
 import org.apache.curator.x.discovery.ServiceInstance;
 
 /**
- * Will result in throwing an exception if there are no running instances of the dependency
+ * Will result in throwing an exception if there are no running instances of the
+ * dependency.
  *
  * @author Marcin Grzejszczak
  * @author Adam Chudzik, 4financeIT
  * @since 1.0.0
  */
 public class FailOnMissingDependencyChecker implements PresenceChecker {
+
 	@Override
-	public void checkPresence(String dependencyName, List<ServiceInstance<?>> serviceInstances) {
+	public void checkPresence(String dependencyName,
+			List<ServiceInstance<?>> serviceInstances) {
 		if (serviceInstances.isEmpty()) {
 			throw new NoInstancesRunningException(dependencyName);
 		}

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/presence/LogMissingDependencyChecker.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher.presence;
 
 import java.util.List;
@@ -22,7 +23,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.curator.x.discovery.ServiceInstance;
 
 /**
- * Will log the missing microservice dependency
+ * Will log the missing microservice dependency.
  *
  * @author Marcin Grzejszczak
  * @author Tomasz Dziurko, 4financeIT
@@ -33,7 +34,8 @@ public class LogMissingDependencyChecker implements PresenceChecker {
 	private static final Log log = LogFactory.getLog(LogMissingDependencyChecker.class);
 
 	@Override
-	public void checkPresence(String dependencyName, List<ServiceInstance<?>> serviceInstances) {
+	public void checkPresence(String dependencyName,
+			List<ServiceInstance<?>> serviceInstances) {
 		if (serviceInstances.isEmpty()) {
 			log.warn("Microservice dependency with name [" + dependencyName
 					+ "] is missing.");

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/presence/NoInstancesRunningException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher.presence;
 
 /**
@@ -20,7 +21,10 @@ package org.springframework.cloud.zookeeper.discovery.watcher.presence;
  * @since 1.0.0
  */
 public class NoInstancesRunningException extends RuntimeException {
+
 	public NoInstancesRunningException(String dependencyName) {
-		super("Required microservice dependency with name [" + dependencyName + "] is missing");
+		super("Required microservice dependency with name [" + dependencyName
+				+ "] is missing");
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/watcher/presence/PresenceChecker.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery.watcher.presence;
 
 import java.util.List;
@@ -20,8 +21,8 @@ import java.util.List;
 import org.apache.curator.x.discovery.ServiceInstance;
 
 /**
- * The implementation of this interface will be called upon checking if a dependency with a given name
- * is present upon startup within the provided service instances.
+ * The implementation of this interface will be called upon checking if a dependency with
+ * a given name is present upon startup within the provided service instances.
  *
  * @author Marcin Grzejszczak
  * @since 1.0.0
@@ -29,10 +30,10 @@ import org.apache.curator.x.discovery.ServiceInstance;
 public interface PresenceChecker {
 
 	/**
-	 * Checks if a given dependency is present
-	 *
-	 * @param dependencyName
-	 * @param serviceInstances - instances to check the dependency for
+	 * Checks if a given dependency is present.
+	 * @param dependencyName Name of the dependency.
+	 * @param serviceInstances - instances to check the dependency for.
 	 */
 	void checkPresence(String dependencyName, List<ServiceInstance<?>> serviceInstances);
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/serviceregistry/ServiceInstanceRegistration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,22 +16,23 @@
 
 package org.springframework.cloud.zookeeper.serviceregistry;
 
-import org.apache.curator.x.discovery.ServiceInstance;
-import org.apache.curator.x.discovery.ServiceInstanceBuilder;
-import org.apache.curator.x.discovery.ServiceType;
-import org.apache.curator.x.discovery.UriSpec;
-import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
-
 import java.net.URI;
 import java.util.Collections;
 import java.util.Map;
 
+import org.apache.curator.x.discovery.ServiceInstance;
+import org.apache.curator.x.discovery.ServiceInstanceBuilder;
+import org.apache.curator.x.discovery.ServiceType;
+import org.apache.curator.x.discovery.UriSpec;
+
+import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
+
 import static org.springframework.cloud.zookeeper.discovery.ZookeeperDiscoveryProperties.DEFAULT_URI_SPEC;
 
 /**
- * {@link org.springframework.cloud.client.serviceregistry.Registration} that lazily builds
- * a {@link ServiceInstance} so the port can by dynamically set (for instance, when the
- * user wants a dynamic port for spring boot.
+ * {@link org.springframework.cloud.client.serviceregistry.Registration} that lazily
+ * builds a {@link ServiceInstance} so the port can by dynamically set (for instance, when
+ * the user wants a dynamic port for spring boot.
  *
  * @author Spencer Gibb
  */
@@ -40,86 +41,23 @@ public class ServiceInstanceRegistration implements ZookeeperRegistration {
 	public static RegistrationBuilder builder() {
 		try {
 			return new RegistrationBuilder(ServiceInstance.<ZookeeperInstance>builder());
-		} catch (Exception e) {
+		}
+		catch (Exception e) {
 			throw new RuntimeException("Error creating ServiceInstanceBuilder", e);
 		}
 	}
 
-	public static RegistrationBuilder builder(ServiceInstanceBuilder<ZookeeperInstance> builder) {
+	public static RegistrationBuilder builder(
+			ServiceInstanceBuilder<ZookeeperInstance> builder) {
 		return new RegistrationBuilder(builder);
 	}
 
-	public static class RegistrationBuilder {
-		protected ServiceInstanceBuilder<ZookeeperInstance> builder;
-
-		public RegistrationBuilder(ServiceInstanceBuilder<ZookeeperInstance> builder) {
-			this.builder = builder;
-		}
-
-		public ServiceInstanceRegistration build() {
-			return new ServiceInstanceRegistration(this.builder);
-		}
-
-		public RegistrationBuilder name(String name) {
-			this.builder.name(name);
-			return this;
-		}
-
-		public RegistrationBuilder address(String address) {
-			this.builder.address(address);
-			return this;
-		}
-
-		public RegistrationBuilder id(String id) {
-			this.builder.id(id);
-			return this;
-		}
-
-		public RegistrationBuilder port(int port) {
-			this.builder.port(port);
-			return this;
-		}
-
-		public RegistrationBuilder sslPort(int port) {
-			this.builder.sslPort(port);
-			return this;
-		}
-
-		public RegistrationBuilder payload(ZookeeperInstance payload) {
-			this.builder.payload(payload);
-			return this;
-		}
-
-		public RegistrationBuilder serviceType(ServiceType serviceType) {
-			this.builder.serviceType(serviceType);
-			return this;
-		}
-
-		public RegistrationBuilder registrationTimeUTC(long registrationTimeUTC) {
-			this.builder.registrationTimeUTC(registrationTimeUTC);
-			return this;
-		}
-
-		public RegistrationBuilder uriSpec(UriSpec uriSpec) {
-			this.builder.uriSpec(uriSpec);
-			return this;
-		}
-
-		public RegistrationBuilder uriSpec(String uriSpec) {
-			this.builder.uriSpec(new UriSpec(uriSpec));
-			return this;
-		}
-
-		public RegistrationBuilder defaultUriSpec() {
-			this.builder.uriSpec(new UriSpec(DEFAULT_URI_SPEC));
-			return this;
-		}
-	}
-
 	protected ServiceInstance<ZookeeperInstance> serviceInstance;
+
 	protected ServiceInstanceBuilder<ZookeeperInstance> builder;
 
-	public ServiceInstanceRegistration(ServiceInstanceBuilder<ZookeeperInstance> builder) {
+	public ServiceInstanceRegistration(
+			ServiceInstanceBuilder<ZookeeperInstance> builder) {
 		this.builder = builder;
 	}
 
@@ -185,4 +123,77 @@ public class ServiceInstanceRegistration implements ZookeeperRegistration {
 		}
 		return this.serviceInstance.getPayload().getMetadata();
 	}
+
+	/**
+	 * A builder for ServiceInstanceRegistration.
+	 */
+	public static class RegistrationBuilder {
+
+		protected ServiceInstanceBuilder<ZookeeperInstance> builder;
+
+		public RegistrationBuilder(ServiceInstanceBuilder<ZookeeperInstance> builder) {
+			this.builder = builder;
+		}
+
+		public ServiceInstanceRegistration build() {
+			return new ServiceInstanceRegistration(this.builder);
+		}
+
+		public RegistrationBuilder name(String name) {
+			this.builder.name(name);
+			return this;
+		}
+
+		public RegistrationBuilder address(String address) {
+			this.builder.address(address);
+			return this;
+		}
+
+		public RegistrationBuilder id(String id) {
+			this.builder.id(id);
+			return this;
+		}
+
+		public RegistrationBuilder port(int port) {
+			this.builder.port(port);
+			return this;
+		}
+
+		public RegistrationBuilder sslPort(int port) {
+			this.builder.sslPort(port);
+			return this;
+		}
+
+		public RegistrationBuilder payload(ZookeeperInstance payload) {
+			this.builder.payload(payload);
+			return this;
+		}
+
+		public RegistrationBuilder serviceType(ServiceType serviceType) {
+			this.builder.serviceType(serviceType);
+			return this;
+		}
+
+		public RegistrationBuilder registrationTimeUTC(long registrationTimeUTC) {
+			this.builder.registrationTimeUTC(registrationTimeUTC);
+			return this;
+		}
+
+		public RegistrationBuilder uriSpec(UriSpec uriSpec) {
+			this.builder.uriSpec(uriSpec);
+			return this;
+		}
+
+		public RegistrationBuilder uriSpec(String uriSpec) {
+			this.builder.uriSpec(new UriSpec(uriSpec));
+			return this;
+		}
+
+		public RegistrationBuilder defaultUriSpec() {
+			this.builder.uriSpec(new UriSpec(DEFAULT_URI_SPEC));
+			return this;
+		}
+
+	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/serviceregistry/ZookeeperAutoServiceRegistration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,34 +18,36 @@ package org.springframework.cloud.zookeeper.serviceregistry;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+
 import org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration;
 import org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationProperties;
 import org.springframework.cloud.zookeeper.discovery.ZookeeperDiscoveryProperties;
 
 /**
- * Zookeeper {@link AbstractAutoServiceRegistration}
- * that uses {@link ZookeeperServiceRegistry} to register and de-register instances.
+ * Zookeeper {@link AbstractAutoServiceRegistration} that uses
+ * {@link ZookeeperServiceRegistry} to register and de-register instances.
  *
  * @author Spencer Gibb
  * @since 1.0.0
  */
-public class ZookeeperAutoServiceRegistration extends AbstractAutoServiceRegistration<ZookeeperRegistration> {
+public class ZookeeperAutoServiceRegistration
+		extends AbstractAutoServiceRegistration<ZookeeperRegistration> {
 
-	private static final Log log = LogFactory.getLog(ZookeeperAutoServiceRegistration.class);
+	private static final Log log = LogFactory
+			.getLog(ZookeeperAutoServiceRegistration.class);
 
 	private ZookeeperRegistration registration;
+
 	private ZookeeperDiscoveryProperties properties;
 
 	public ZookeeperAutoServiceRegistration(ZookeeperServiceRegistry registry,
-											ZookeeperRegistration registration,
-											ZookeeperDiscoveryProperties properties) {
+			ZookeeperRegistration registration, ZookeeperDiscoveryProperties properties) {
 		this(registry, registration, properties, null);
 	}
 
 	public ZookeeperAutoServiceRegistration(ZookeeperServiceRegistry registry,
-											ZookeeperRegistration registration,
-											ZookeeperDiscoveryProperties properties,
-											AutoServiceRegistrationProperties arProperties) {
+			ZookeeperRegistration registration, ZookeeperDiscoveryProperties properties,
+			AutoServiceRegistrationProperties arProperties) {
 		super(registry, arProperties);
 		this.registration = registration;
 		this.properties = properties;
@@ -93,4 +95,5 @@ public class ZookeeperAutoServiceRegistration extends AbstractAutoServiceRegistr
 	protected Object getConfiguration() {
 		return this.properties;
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/serviceregistry/ZookeeperAutoServiceRegistrationAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -38,8 +38,9 @@ import org.springframework.util.StringUtils;
 @ConditionalOnMissingBean(type = "org.springframework.cloud.zookeeper.discovery.ZookeeperLifecycle")
 @ConditionalOnZookeeperDiscoveryEnabled
 @ConditionalOnProperty(value = "spring.cloud.service-registry.auto-registration.enabled", matchIfMissing = true)
-@AutoConfigureAfter( { ZookeeperServiceRegistryAutoConfiguration.class} )
-@AutoConfigureBefore( {AutoServiceRegistrationAutoConfiguration.class,ZookeeperDiscoveryAutoConfiguration.class} )
+@AutoConfigureAfter({ ZookeeperServiceRegistryAutoConfiguration.class })
+@AutoConfigureBefore({ AutoServiceRegistrationAutoConfiguration.class,
+		ZookeeperDiscoveryAutoConfiguration.class })
 public class ZookeeperAutoServiceRegistrationAutoConfiguration {
 
 	@Bean
@@ -73,7 +74,6 @@ public class ZookeeperAutoServiceRegistrationAutoConfiguration {
 			builder.id(properties.getInstanceId());
 		}
 
-
 		// TODO add customizer?
 
 		return builder.build();

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/serviceregistry/ZookeeperRegistration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,6 +17,7 @@
 package org.springframework.cloud.zookeeper.serviceregistry;
 
 import org.apache.curator.x.discovery.ServiceInstance;
+
 import org.springframework.cloud.client.serviceregistry.Registration;
 import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
 
@@ -28,4 +29,5 @@ public interface ZookeeperRegistration extends Registration {
 	ServiceInstance<ZookeeperInstance> getServiceInstance();
 
 	void setPort(int port);
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/serviceregistry/ZookeeperServiceRegistry.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import java.io.IOException;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.x.discovery.ServiceDiscovery;
 import org.apache.curator.x.discovery.ServiceInstance;
+
 import org.springframework.beans.factory.SmartInitializingSingleton;
 import org.springframework.cloud.client.serviceregistry.ServiceRegistry;
 import org.springframework.cloud.zookeeper.discovery.ZookeeperDiscoveryProperties;
@@ -36,8 +37,8 @@ import static org.springframework.util.ReflectionUtils.rethrowRuntimeException;
 /**
  * @author Spencer Gibb
  */
-public class ZookeeperServiceRegistry implements ServiceRegistry<ZookeeperRegistration>, SmartInitializingSingleton,
-		Closeable {
+public class ZookeeperServiceRegistry implements ServiceRegistry<ZookeeperRegistration>,
+		SmartInitializingSingleton, Closeable {
 
 	// private AtomicBoolean started = new AtomicBoolean();
 
@@ -48,24 +49,28 @@ public class ZookeeperServiceRegistry implements ServiceRegistry<ZookeeperRegist
 	// protected InstanceSerializer<ZookeeperInstance> instanceSerializer;
 	private ServiceDiscovery<ZookeeperInstance> serviceDiscovery;
 
-	public ZookeeperServiceRegistry(ServiceDiscovery<ZookeeperInstance> serviceDiscovery) {
+	public ZookeeperServiceRegistry(
+			ServiceDiscovery<ZookeeperInstance> serviceDiscovery) {
 		this.serviceDiscovery = serviceDiscovery;
 	}
 
 	/**
-	 * TODO: add when ZookeeperServiceDiscovery is removed
-	 * One can override this method to provide custom way of registering {@link ServiceDiscovery}
+	 * TODO: add when ZookeeperServiceDiscovery is removed One can override this method to
+	 * provide custom way of registering {@link ServiceDiscovery}
+	 */
+	/*
+	 * private void configureServiceDiscovery() {
+	 * this.zookeeperServiceDiscovery.configureServiceDiscovery(this.
+	 * zookeeperServiceDiscovery.getServiceDiscoveryRef(), this.curator, this.properties,
+	 * this.instanceSerializer, this.zookeeperServiceDiscovery.getServiceInstanceRef()); }
 	 */
-	/*private void configureServiceDiscovery() {
-		this.zookeeperServiceDiscovery.configureServiceDiscovery(this.zookeeperServiceDiscovery.getServiceDiscoveryRef(),
-				this.curator, this.properties, this.instanceSerializer, this.zookeeperServiceDiscovery.getServiceInstanceRef());
-	}*/
 
 	@Override
 	public void register(ZookeeperRegistration registration) {
 		try {
 			getServiceDiscovery().registerService(registration.getServiceInstance());
-		} catch (Exception e) {
+		}
+		catch (Exception e) {
 			rethrowRuntimeException(e);
 		}
 	}
@@ -78,7 +83,8 @@ public class ZookeeperServiceRegistry implements ServiceRegistry<ZookeeperRegist
 	public void deregister(ZookeeperRegistration registration) {
 		try {
 			getServiceDiscovery().unregisterService(registration.getServiceInstance());
-		} catch (Exception e) {
+		}
+		catch (Exception e) {
 			rethrowRuntimeException(e);
 		}
 	}
@@ -87,7 +93,8 @@ public class ZookeeperServiceRegistry implements ServiceRegistry<ZookeeperRegist
 	public void afterSingletonsInstantiated() {
 		try {
 			getServiceDiscovery().start();
-		} catch (Exception e) {
+		}
+		catch (Exception e) {
 			rethrowRuntimeException(e);
 		}
 	}
@@ -96,19 +103,22 @@ public class ZookeeperServiceRegistry implements ServiceRegistry<ZookeeperRegist
 	public void close() {
 		try {
 			getServiceDiscovery().close();
-		} catch (IOException e) {
+		}
+		catch (IOException e) {
 			rethrowRuntimeException(e);
 		}
 	}
 
 	@Override
 	public void setStatus(ZookeeperRegistration registration, String status) {
-		ServiceInstance<ZookeeperInstance> serviceInstance = registration.getServiceInstance();
+		ServiceInstance<ZookeeperInstance> serviceInstance = registration
+				.getServiceInstance();
 		ZookeeperInstance instance = serviceInstance.getPayload();
 		instance.getMetadata().put(INSTANCE_STATUS_KEY, status);
 		try {
 			getServiceDiscovery().updateService(serviceInstance);
-		} catch (Exception e) {
+		}
+		catch (Exception e) {
 			ReflectionUtils.rethrowRuntimeException(e);
 		}
 	}
@@ -129,7 +139,10 @@ public class ZookeeperServiceRegistry implements ServiceRegistry<ZookeeperRegist
 		return this.curator;
 	}
 
-	/*protected AtomicReference<ServiceDiscovery<ZookeeperInstance>> getServiceDiscoveryRef() {
-		return this.zookeeperServiceDiscovery.getServiceDiscoveryRef();
-	}*/
+	/*
+	 * protected AtomicReference<ServiceDiscovery<ZookeeperInstance>>
+	 * getServiceDiscoveryRef() { return
+	 * this.zookeeperServiceDiscovery.getServiceDiscoveryRef(); }
+	 */
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/serviceregistry/ZookeeperServiceRegistryAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ package org.springframework.cloud.zookeeper.serviceregistry;
 import org.apache.curator.x.discovery.ServiceDiscovery;
 import org.apache.curator.x.discovery.details.InstanceSerializer;
 import org.apache.curator.x.discovery.details.JsonInstanceSerializer;
+
 import org.springframework.beans.BeansException;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
@@ -40,7 +41,8 @@ import org.springframework.context.annotation.Configuration;
 @ConditionalOnZookeeperDiscoveryEnabled
 @ConditionalOnProperty(value = "spring.cloud.service-registry.enabled", matchIfMissing = true)
 @AutoConfigureBefore(ServiceRegistryAutoConfiguration.class)
-public class ZookeeperServiceRegistryAutoConfiguration implements ApplicationContextAware {
+public class ZookeeperServiceRegistryAutoConfiguration
+		implements ApplicationContextAware {
 
 	private ApplicationContext context;
 
@@ -63,7 +65,9 @@ public class ZookeeperServiceRegistryAutoConfiguration implements ApplicationCon
 
 	@Bean
 	@ConditionalOnMissingBean
-	public ZookeeperDiscoveryProperties zookeeperDiscoveryProperties(InetUtils inetUtils) {
+	public ZookeeperDiscoveryProperties zookeeperDiscoveryProperties(
+			InetUtils inetUtils) {
 		return new ZookeeperDiscoveryProperties(inetUtils);
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/support/CuratorServiceDiscoveryAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,6 +21,7 @@ import org.apache.curator.x.discovery.ServiceDiscovery;
 import org.apache.curator.x.discovery.ServiceDiscoveryBuilder;
 import org.apache.curator.x.discovery.details.InstanceSerializer;
 import org.apache.curator.x.discovery.details.JsonInstanceSerializer;
+
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.cloud.zookeeper.discovery.ConditionalOnZookeeperDiscoveryEnabled;
@@ -58,6 +59,8 @@ public class CuratorServiceDiscoveryAutoConfiguration {
 	@ConditionalOnMissingBean
 	public ServiceDiscovery<ZookeeperInstance> curatorServiceDiscovery(
 			ServiceDiscoveryCustomizer customizer) {
-		return customizer.customize(ServiceDiscoveryBuilder.builder(ZookeeperInstance.class));
+		return customizer
+				.customize(ServiceDiscoveryBuilder.builder(ZookeeperInstance.class));
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/support/DefaultServiceDiscoveryCustomizer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,27 +20,32 @@ import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.x.discovery.ServiceDiscovery;
 import org.apache.curator.x.discovery.ServiceDiscoveryBuilder;
 import org.apache.curator.x.discovery.details.InstanceSerializer;
+
 import org.springframework.cloud.zookeeper.discovery.ZookeeperDiscoveryProperties;
 import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
 
 /**
  * @author Spencer Gibb
  */
-public class DefaultServiceDiscoveryCustomizer implements ServiceDiscoveryCustomizer{
+public class DefaultServiceDiscoveryCustomizer implements ServiceDiscoveryCustomizer {
+
 	protected CuratorFramework curator;
 
 	protected ZookeeperDiscoveryProperties properties;
 
 	protected InstanceSerializer<ZookeeperInstance> instanceSerializer;
 
-	public DefaultServiceDiscoveryCustomizer(CuratorFramework curator, ZookeeperDiscoveryProperties properties, InstanceSerializer<ZookeeperInstance> instanceSerializer) {
+	public DefaultServiceDiscoveryCustomizer(CuratorFramework curator,
+			ZookeeperDiscoveryProperties properties,
+			InstanceSerializer<ZookeeperInstance> instanceSerializer) {
 		this.curator = curator;
 		this.properties = properties;
 		this.instanceSerializer = instanceSerializer;
 	}
 
 	@Override
-	public ServiceDiscovery<ZookeeperInstance> customize(ServiceDiscoveryBuilder<ZookeeperInstance> builder) {
+	public ServiceDiscovery<ZookeeperInstance> customize(
+			ServiceDiscoveryBuilder<ZookeeperInstance> builder) {
 		// @formatter:off
 		return builder
 				.client(this.curator)
@@ -49,4 +54,5 @@ public class DefaultServiceDiscoveryCustomizer implements ServiceDiscoveryCustom
 				.build();
 		// @formatter:on
 	}
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/support/ServiceDiscoveryCustomizer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@ package org.springframework.cloud.zookeeper.support;
 
 import org.apache.curator.x.discovery.ServiceDiscovery;
 import org.apache.curator.x.discovery.ServiceDiscoveryBuilder;
+
 import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
 
 /**
@@ -25,5 +26,7 @@ import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
  */
 public interface ServiceDiscoveryCustomizer {
 
-	ServiceDiscovery<ZookeeperInstance> customize(ServiceDiscoveryBuilder<ZookeeperInstance> builder);
+	ServiceDiscovery<ZookeeperInstance> customize(
+			ServiceDiscoveryBuilder<ZookeeperInstance> builder);
+
 }

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/support/StatusConstants.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,22 +16,31 @@
 
 package org.springframework.cloud.zookeeper.support;
 
+import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
+
 /**
  * @author Spencer Gibb
  */
-public interface StatusConstants {
+public final class StatusConstants {
+
+	private StatusConstants() {
+	}
+
 	/**
-	 * Key to the {@link org.springframework.cloud.zookeeper.discovery.ZookeeperInstance#metadata} map.
+	 * Key to the
+	 * {@link ZookeeperInstance#getMetadata()}
+	 * map.
 	 */
-	String INSTANCE_STATUS_KEY = "instance_status";
+	public static final String INSTANCE_STATUS_KEY = "instance_status";
 
 	/**
 	 * UP value for {@link StatusConstants#INSTANCE_STATUS_KEY} key.
 	 */
-	String STATUS_UP = "UP";
+	public static final String STATUS_UP = "UP";
 
 	/**
 	 * OUT_OF_SERVICE value for {@link StatusConstants#INSTANCE_STATUS_KEY} key.
 	 */
-	String STATUS_OUT_OF_SERVICE = "OUT_OF_SERVICE";
+	public static final String STATUS_OUT_OF_SERVICE = "OUT_OF_SERVICE";
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/ZookeeperServerListTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@ import org.apache.curator.x.discovery.ServiceDiscovery;
 import org.apache.curator.x.discovery.ServiceInstance;
 import org.assertj.core.data.MapEntry;
 import org.junit.Test;
+
 import org.springframework.cloud.zookeeper.discovery.ZookeeperInstance;
 import org.springframework.cloud.zookeeper.discovery.ZookeeperServer;
 import org.springframework.cloud.zookeeper.discovery.ZookeeperServerList;
@@ -52,7 +53,8 @@ public class ZookeeperServerListTests {
 	@Test
 	@SuppressWarnings("unchecked")
 	public void testEmptyInstancesReturnsEmptyList() throws Exception {
-		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(ServiceDiscovery.class);
+		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(
+				ServiceDiscovery.class);
 		when(serviceDiscovery.queryForInstances(anyString())).thenReturn(null);
 
 		ZookeeperServerList serverList = new ZookeeperServerList(serviceDiscovery);
@@ -66,27 +68,31 @@ public class ZookeeperServerListTests {
 		ArrayList<ServiceInstance<ZookeeperInstance>> instances = new ArrayList<>();
 		instances.add(serviceInstance(1, null));
 
-		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(ServiceDiscovery.class);
-		when(serviceDiscovery.queryForInstances(nullable(String.class))).thenReturn(instances);
+		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(
+				ServiceDiscovery.class);
+		when(serviceDiscovery.queryForInstances(nullable(String.class)))
+				.thenReturn(instances);
 
 		ZookeeperServerList serverList = new ZookeeperServerList(serviceDiscovery);
 		List<ZookeeperServer> servers = serverList.getInitialListOfServers();
 		assertThat(servers).hasSize(1);
 	}
 
-	private ServiceInstance<ZookeeperInstance> serviceInstance(int instanceNum, String instanceStatus) {
+	private ServiceInstance<ZookeeperInstance> serviceInstance(int instanceNum,
+			String instanceStatus) {
 		String id = "instance" + instanceNum + "id";
 		String name = "instance" + instanceNum + "name";
 
 		ZookeeperInstance payload = null;
 
 		if (instanceStatus != null) {
-			payload = new ZookeeperInstance(id, name, Collections.singletonMap(INSTANCE_STATUS_KEY, instanceStatus));
+			payload = new ZookeeperInstance(id, name,
+					Collections.singletonMap(INSTANCE_STATUS_KEY, instanceStatus));
 		}
 		String address = "instance" + instanceNum + "addr";
 		int port = 8080 + instanceNum;
-		return new ServiceInstance<>(name, id, address, port, null, payload,
-				0, null, null);
+		return new ServiceInstance<>(name, id, address, port, null, payload, 0, null,
+				null);
 	}
 
 	@Test
@@ -96,8 +102,10 @@ public class ZookeeperServerListTests {
 		instances.add(serviceInstance(1, STATUS_UP));
 		instances.add(serviceInstance(2, STATUS_OUT_OF_SERVICE));
 
-		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(ServiceDiscovery.class);
-		when(serviceDiscovery.queryForInstances(nullable(String.class))).thenReturn(instances);
+		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(
+				ServiceDiscovery.class);
+		when(serviceDiscovery.queryForInstances(nullable(String.class)))
+				.thenReturn(instances);
 
 		ZookeeperServerList serverList = new ZookeeperServerList(serviceDiscovery);
 		List<ZookeeperServer> servers = serverList.getInitialListOfServers();
@@ -106,4 +114,5 @@ public class ZookeeperServerListTests {
 		assertThat(servers.get(0).getInstance().getPayload().getMetadata())
 				.contains(MapEntry.entry(INSTANCE_STATUS_KEY, STATUS_UP));
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/TestServiceRegistrar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.cloud.zookeeper.discovery;
 
 import java.io.IOException;
@@ -26,7 +27,9 @@ import org.apache.curator.x.discovery.UriSpec;
 public class TestServiceRegistrar {
 
 	private final int serverPort;
+
 	private final CuratorFramework curatorFramework;
+
 	private final ServiceDiscovery serviceDiscovery;
 
 	public TestServiceRegistrar(int serverPort, CuratorFramework curatorFramework) {
@@ -38,33 +41,29 @@ public class TestServiceRegistrar {
 	public void start() {
 		try {
 			this.serviceDiscovery.start();
-		} catch (Exception e) {
+		}
+		catch (Exception e) {
 			throw new RuntimeException(e);
 		}
 	}
 
 	public ServiceInstance serviceInstance() {
 		try {
-			return ServiceInstance.builder().uriSpec(new UriSpec("{scheme}://{address}:{port}/"))
-					.address("localhost")
-					.port(this.serverPort)
-					.name("testInstance")
+			return ServiceInstance.builder()
+					.uriSpec(new UriSpec("{scheme}://{address}:{port}/"))
+					.address("localhost").port(this.serverPort).name("testInstance")
 					.build();
-		} catch (Exception e) {
+		}
+		catch (Exception e) {
 			throw new RuntimeException(e);
 		}
 	}
 
 	public ServiceDiscovery serviceDiscovery() {
-		return ServiceDiscoveryBuilder
-				.builder(Void.class)
-				.basePath("/services")
-				.client(this.curatorFramework)
-				.thisInstance(serviceInstance())
-				.build();
+		return ServiceDiscoveryBuilder.builder(Void.class).basePath("/services")
+				.client(this.curatorFramework).thisInstance(serviceInstance()).build();
 	}
 
-
 	public void stop() {
 		try {
 			this.serviceDiscovery.close();
@@ -73,4 +72,5 @@ public class TestServiceRegistrar {
 			throw new RuntimeException(e);
 		}
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryAutoRegistrationFalseTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@ import java.util.List;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -44,18 +45,22 @@ import static org.springframework.boot.test.context.SpringBootTest.WebEnvironmen
  * @author Spencer Gibb
  */
 @RunWith(SpringRunner.class)
-@SpringBootTest(classes = ZookeeperDiscoveryAutoRegistrationFalseTests.Config.class,
-		properties = { "spring.application.name=testzkautoregfalse", "debug=true" },
-		webEnvironment = RANDOM_PORT)
+@SpringBootTest(classes = ZookeeperDiscoveryAutoRegistrationFalseTests.Config.class, properties = {
+		"spring.application.name=testzkautoregfalse",
+		"debug=true" }, webEnvironment = RANDOM_PORT)
 @DirtiesContext
 public class ZookeeperDiscoveryAutoRegistrationFalseTests {
 
-	@Autowired DiscoveryClient discoveryClient;
-	@Value("${spring.application.name}") String springAppName;
+	@Autowired
+	DiscoveryClient discoveryClient;
 
-	@Test public void discovery_client_is_zookeeper() {
-		//given: this.discoveryClient
-		//expect:
+	@Value("${spring.application.name}")
+	String springAppName;
+
+	@Test
+	public void discovery_client_is_zookeeper() {
+		// given: this.discoveryClient
+		// expect:
 		then(discoveryClient).isInstanceOf(CompositeDiscoveryClient.class);
 		CompositeDiscoveryClient composite = (CompositeDiscoveryClient) discoveryClient;
 		List<DiscoveryClient> discoveryClients = composite.getDiscoveryClients();
@@ -63,10 +68,12 @@ public class ZookeeperDiscoveryAutoRegistrationFalseTests {
 		then(first).isInstanceOf(ZookeeperDiscoveryClient.class);
 	}
 
-	@Test public void application_should_not_have_been_registered() {
-		//given:
-		List<ServiceInstance> instances = this.discoveryClient.getInstances(springAppName);
-		//expect:
+	@Test
+	public void application_should_not_have_been_registered() {
+		// given:
+		List<ServiceInstance> instances = this.discoveryClient
+				.getInstances(springAppName);
+		// expect:
 		then(instances).isEmpty();
 	}
 
@@ -82,8 +89,11 @@ public class ZookeeperDiscoveryAutoRegistrationFalseTests {
 	@Profile("ribbon")
 	class PingController {
 
-		@RequestMapping("/ping") String ping() {
+		@RequestMapping("/ping")
+		String ping() {
 			return "pong";
 		}
+
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryClientTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery;
 
 import java.util.List;
@@ -17,9 +33,11 @@ import static org.mockito.Mockito.when;
  */
 public class ZookeeperDiscoveryClientTests {
 
-	@Test public void should_return_an_empty_list_of_services_if_service_discovery_is_null() {
+	@Test
+	public void should_return_an_empty_list_of_services_if_service_discovery_is_null() {
 		// given:
-		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(ServiceDiscovery.class);
+		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(
+				ServiceDiscovery.class);
 		ZookeeperDiscoveryClient zookeeperDiscoveryClient = new ZookeeperDiscoveryClient(
 				serviceDiscovery, null, new ZookeeperDiscoveryProperties());
 		// when:
@@ -31,7 +49,8 @@ public class ZookeeperDiscoveryClientTests {
 	@Test
 	public void getServicesShouldReturnEmptyWhenNoNodeException() throws Exception {
 		// given:
-		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(ServiceDiscovery.class);
+		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(
+				ServiceDiscovery.class);
 		when(serviceDiscovery.queryForNames()).thenThrow(new NoNodeException());
 		ZookeeperDiscoveryClient discoveryClient = new ZookeeperDiscoveryClient(
 				serviceDiscovery, null, new ZookeeperDiscoveryProperties());
@@ -44,8 +63,10 @@ public class ZookeeperDiscoveryClientTests {
 	@Test
 	public void getInstancesshouldReturnEmptyWhenNoNodeException() throws Exception {
 		// given:
-		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(ServiceDiscovery.class);
-		when(serviceDiscovery.queryForInstances("myservice")).thenThrow(new NoNodeException());
+		ServiceDiscovery<ZookeeperInstance> serviceDiscovery = mock(
+				ServiceDiscovery.class);
+		when(serviceDiscovery.queryForInstances("myservice"))
+				.thenThrow(new NoNodeException());
 		ZookeeperDiscoveryClient discoveryClient = new ZookeeperDiscoveryClient(
 				serviceDiscovery, null, new ZookeeperDiscoveryProperties());
 		// when:
@@ -53,4 +74,5 @@ public class ZookeeperDiscoveryClientTests {
 		// then:
 		then(instances).isEmpty();
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryDisabledTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,8 +20,10 @@ import org.apache.curator.framework.CuratorFramework;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.cloud.zookeeper.discovery.test.CommonTestConfig;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -33,12 +35,13 @@ import org.springframework.test.context.junit4.SpringRunner;
  */
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = ZookeeperDiscoveryDisabledTests.SomeApp.class,
-		webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
-		properties = {"spring.cloud.zookeeper.discovery.enabled=false", "debug=true"})
+		webEnvironment = WebEnvironment.RANDOM_PORT, properties = {
+		"spring.cloud.zookeeper.discovery.enabled=false", "debug=true" })
 public class ZookeeperDiscoveryDisabledTests {
 
 	@Test
-	@Ignore //FIXME 2.0.0 error creating zookeeperHealthIndicator, CuratorFramework not found, but report says it is
+	@Ignore // FIXME 2.0.0 error creating zookeeperHealthIndicator, CuratorFramework not
+			// found, but report says it is
 	public void should_start_the_context_with_discovery_disabled() throws Exception {
 	}
 
@@ -46,9 +49,12 @@ public class ZookeeperDiscoveryDisabledTests {
 	@EnableAutoConfiguration
 	@Import(CommonTestConfig.class)
 	static class SomeApp {
+
 		@Bean
 		CuratorFramework curator() {
 			return null;
 		}
+
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryHealthIndicatorDisabledTests.java

@@ -1,7 +1,24 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringBootConfiguration;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -17,23 +34,26 @@ import static org.springframework.boot.test.context.SpringBootTest.WebEnvironmen
  * @author Spencer Gibb
  */
 @RunWith(SpringRunner.class)
-@SpringBootTest(webEnvironment = RANDOM_PORT,
-		properties = "management.health.zookeeper.enabled=false")
+@SpringBootTest(webEnvironment = RANDOM_PORT, properties = "management.health.zookeeper.enabled=false")
 public class ZookeeperDiscoveryHealthIndicatorDisabledTests {
 
 	@Autowired(required = false)
 	private ZookeeperDiscoveryHealthIndicator healthIndicator;
 
-	// Issue: #101 - ZookeeperDiscoveryHealthIndicator should be able to be disabled with a property
-	@Test public void healthIndicatorDisabled() {
+	// Issue: #101 - ZookeeperDiscoveryHealthIndicator should be able to be disabled with
+	// a property
+	@Test
+	public void healthIndicatorDisabled() {
 		// when:
 		// then:
 		then(this.healthIndicator).isNull();
 	}
-	
+
 	@SpringBootConfiguration
 	@EnableAutoConfiguration
 	@Import(CommonTestConfig.class)
-	static class Config {}
+	static class Config {
+
+	}
 
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryHealthIndicatorWithNestedStructureTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery;
 
 import java.lang.invoke.MethodHandles;
@@ -10,6 +26,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.curator.framework.CuratorFramework;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -37,27 +54,32 @@ import static org.springframework.cloud.zookeeper.discovery.test.TestRibbonClien
  */
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = ZookeeperDiscoveryHealthIndicatorWithNestedStructureTests.Config.class,
-		properties = "management.endpoints.web.exposure.include=*",
-		webEnvironment = RANDOM_PORT)
+		properties = "management.endpoints.web.exposure.include=*", webEnvironment = RANDOM_PORT)
 @ActiveProfiles("nestedstructure")
 public class ZookeeperDiscoveryHealthIndicatorWithNestedStructureTests {
 
-	private static final Log log = LogFactory.getLog(MethodHandles.lookup().lookupClass());
+	private static final Log log = LogFactory
+			.getLog(MethodHandles.lookup().lookupClass());
 
-	@Autowired TestRibbonClient testRibbonClient;
-	@Autowired CuratorFramework curatorFramework;
+	@Autowired
+	TestRibbonClient testRibbonClient;
+
+	@Autowired
+	CuratorFramework curatorFramework;
 
 	// Issue: #54 - ZookeeperDiscoveryHealthIndicator fails on nested structure
-	@Test public void should_return_a_response_that_app_is_in_a_healthy_state_when_nested_folders_in_zookeeper_are_present()
+	@Test
+	public void should_return_a_response_that_app_is_in_a_healthy_state_when_nested_folders_in_zookeeper_are_present()
 			throws Exception {
 		// when:
 		String response = this.testRibbonClient.callService("me", BASE_PATH + "/health");
 		// then:
 		log.info("Received response [" + response + "]");
 		then(this.curatorFramework.getChildren().forPath("/services/me")).isNotEmpty();
-		then(this.curatorFramework.getChildren().forPath("/services/a/b/c/d/anotherservice")).isNotEmpty();
+		then(this.curatorFramework.getChildren()
+				.forPath("/services/a/b/c/d/anotherservice")).isNotEmpty();
 	}
-	
+
 	@Configuration
 	@EnableAutoConfiguration
 	@Import(CommonTestConfig.class)
@@ -66,19 +88,18 @@ public class ZookeeperDiscoveryHealthIndicatorWithNestedStructureTests {
 
 		@Autowired
 		ZookeeperServiceRegistry serviceRegistry;
+
 		private ZookeeperRegistration registration;
 
 		@PostConstruct
 		void registerNestedDependency() {
 			try {
-				this.registration = ServiceInstanceRegistration.builder()
-						.defaultUriSpec()
-						.address("anyUrl")
-						.port(10)
-						.name("/a/b/c/d/anotherservice")
+				this.registration = ServiceInstanceRegistration.builder().defaultUriSpec()
+						.address("anyUrl").port(10).name("/a/b/c/d/anotherservice")
 						.build();
 				this.serviceRegistry.register(registration);
-			} catch (Exception e) {
+			}
+			catch (Exception e) {
 				throw new RuntimeException(e);
 			}
 		}
@@ -88,9 +109,12 @@ public class ZookeeperDiscoveryHealthIndicatorWithNestedStructureTests {
 			this.serviceRegistry.deregister(this.registration);
 		}
 
-		@Bean TestRibbonClient testRibbonClient(@LoadBalanced RestTemplate restTemplate,
+		@Bean
+		TestRibbonClient testRibbonClient(@LoadBalanced RestTemplate restTemplate,
 				@Value("${spring.application.name}") String springAppName) {
 			return new TestRibbonClient(restTemplate, springAppName);
 		}
+
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryPropertiesTest.java

@@ -1,37 +1,55 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery;
 
+import java.util.Arrays;
+
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
+
 import org.springframework.cloud.commons.util.InetUtils;
 import org.springframework.cloud.commons.util.InetUtilsProperties;
 
-import java.util.Arrays;
-
 import static org.assertj.core.api.BDDAssertions.then;
 
 @RunWith(Parameterized.class)
 public class ZookeeperDiscoveryPropertiesTest {
 
-    private String root;
+	private String root;
 
-    public ZookeeperDiscoveryPropertiesTest(String root) {
-        this.root = root;
-    }
+	public ZookeeperDiscoveryPropertiesTest(String root) {
+		this.root = root;
+	}
 
-    @Parameterized.Parameters(name = "With root {0}")
-    public static Iterable<String> rootVariations() {
-        return Arrays.asList("es", "es/","/es");
-    }
+	@Parameterized.Parameters(name = "With root {0}")
+	public static Iterable<String> rootVariations() {
+		return Arrays.asList("es", "es/", "/es");
+	}
 
-    @Test
-    public void should_escape_root() {
-        // given:
-        ZookeeperDiscoveryProperties zookeeperDiscoveryProperties = new ZookeeperDiscoveryProperties(new InetUtils(new InetUtilsProperties()));
-        // when:
-        zookeeperDiscoveryProperties.setRoot(root);
-        // then:
-        then(zookeeperDiscoveryProperties.getRoot()).isEqualTo("/es");
-    }
+	@Test
+	public void should_escape_root() {
+		// given:
+		ZookeeperDiscoveryProperties zookeeperDiscoveryProperties = new ZookeeperDiscoveryProperties(
+				new InetUtils(new InetUtilsProperties()));
+		// when:
+		zookeeperDiscoveryProperties.setRoot(root);
+		// then:
+		then(zookeeperDiscoveryProperties.getRoot()).isEqualTo("/es");
+	}
 
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryPropertiesTests.java

@@ -1,7 +1,24 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -17,10 +34,10 @@ import static org.assertj.core.api.Assertions.assertThat;
  * @author wmz7year
  */
 @RunWith(SpringJUnit4ClassRunner.class)
-@SpringBootTest(properties = {"pring.application.name=testZookeeperDiscovery",
+@SpringBootTest(properties = { "pring.application.name=testZookeeperDiscovery",
 		"spring.cloud.zookeeper.discovery.instance-id=zkpropstestid-123",
 		"spring.cloud.zookeeper.discovery.preferIpAddress=true",
-		"spring.cloud.zookeeper.discovery.instanceIpAddress=1.1.1.1"},
+		"spring.cloud.zookeeper.discovery.instanceIpAddress=1.1.1.1" },
 		classes = ZookeeperDiscoveryPropertiesTests.Config.class,
 		webEnvironment = WebEnvironment.RANDOM_PORT)
 public class ZookeeperDiscoveryPropertiesTests {
@@ -30,7 +47,8 @@ public class ZookeeperDiscoveryPropertiesTests {
 
 	@Test
 	public void testPreferIpAddress() {
-		assertThat(this.discoveryProperties.getInstanceId()).isEqualTo("zkpropstestid-123");
+		assertThat(this.discoveryProperties.getInstanceId())
+				.isEqualTo("zkpropstestid-123");
 		assertThat(this.discoveryProperties.getInstanceHost()).isEqualTo("1.1.1.1");
 	}
 
@@ -40,4 +58,5 @@ public class ZookeeperDiscoveryPropertiesTests {
 	static class Config {
 
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoverySecurePortTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@ package org.springframework.cloud.zookeeper.discovery;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -42,13 +43,10 @@ import static org.springframework.boot.test.context.SpringBootTest.WebEnvironmen
  * @author Marcin Grzejszczak
  */
 @RunWith(SpringRunner.class)
-@SpringBootTest(classes = ZookeeperDiscoverySecurePortTests.Config.class,
-		properties = {
-			"feign.hystrix.enabled=false",
-			"spring.cloud.zookeeper.discovery.uriSpec={scheme}://{address}:{port}/contextPath",
-			"spring.cloud.zookeeper.discovery.instance-ssl-port=8443",
-		},
-		webEnvironment = RANDOM_PORT)
+@SpringBootTest(classes = ZookeeperDiscoverySecurePortTests.Config.class, properties = {
+		"feign.hystrix.enabled=false",
+		"spring.cloud.zookeeper.discovery.uriSpec={scheme}://{address}:{port}/contextPath",
+		"spring.cloud.zookeeper.discovery.instance-ssl-port=8443" }, webEnvironment = RANDOM_PORT)
 @ActiveProfiles("ribbon")
 @DirtiesContext
 public class ZookeeperDiscoverySecurePortTests {
@@ -67,10 +65,12 @@ public class ZookeeperDiscoverySecurePortTests {
 
 	@Test
 	public void zookeeperServerIntrospectorWorks() {
-		ServerIntrospector serverIntrospector = this.clientFactory.getInstance(springAppName, ServerIntrospector.class);
+		ServerIntrospector serverIntrospector = this.clientFactory
+				.getInstance(springAppName, ServerIntrospector.class);
 		then(serverIntrospector).isInstanceOf(ZookeeperServerIntrospector.class);
 
-		ZookeeperServer zookeeperServer = new ZookeeperServer(this.zookeeperRegistration.getServiceInstance());
+		ZookeeperServer zookeeperServer = new ZookeeperServer(
+				this.zookeeperRegistration.getServiceInstance());
 		then(serverIntrospector.isSecure(zookeeperServer)).isTrue();
 	}
 
@@ -82,7 +82,8 @@ public class ZookeeperDiscoverySecurePortTests {
 
 	@Test
 	public void shouldSetServiceInstanceSslPort() {
-		then(this.zookeeperRegistration.getServiceInstance().getSslPort()).isEqualTo(8443);
+		then(this.zookeeperRegistration.getServiceInstance().getSslPort())
+				.isEqualTo(8443);
 	}
 
 	@Configuration
@@ -90,6 +91,7 @@ public class ZookeeperDiscoverySecurePortTests {
 	@Import(CommonTestConfig.class)
 	@Profile("ribbon")
 	static class Config {
+
 	}
 
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperDiscoveryTests.java

@@ -1,9 +1,28 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery;
 
 import java.util.List;
 
+import com.jayway.awaitility.Awaitility;
+import com.toomuchcoding.jsonassert.JsonPath;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -30,9 +49,6 @@ import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.client.RestTemplate;
 
-import com.jayway.awaitility.Awaitility;
-import com.toomuchcoding.jsonassert.JsonPath;
-
 import static org.assertj.core.api.BDDAssertions.then;
 import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.RANDOM_PORT;
 import static org.springframework.cloud.zookeeper.discovery.test.TestRibbonClient.BASE_PATH;
@@ -42,57 +58,72 @@ import static org.springframework.cloud.zookeeper.discovery.test.TestRibbonClien
  * @author Tim Ysewyn
  */
 @RunWith(SpringRunner.class)
-@SpringBootTest(classes = ZookeeperDiscoveryTests.Config.class,
-		properties = {
-			"feign.hystrix.enabled=false",
-			"spring.cloud.zookeeper.discovery.uri-spec={scheme}://{address}:{port}/contextPath",
-			"management.endpoints.web.exposure.include=*"
-		},
-		webEnvironment = RANDOM_PORT)
+@SpringBootTest(classes = ZookeeperDiscoveryTests.Config.class, properties = {
+		"feign.hystrix.enabled=false",
+		"spring.cloud.zookeeper.discovery.uri-spec={scheme}://{address}:{port}/contextPath",
+		"management.endpoints.web.exposure.include=*" }, webEnvironment = RANDOM_PORT)
 @ActiveProfiles("ribbon")
 @DirtiesContext
 public class ZookeeperDiscoveryTests {
 
-	@Autowired TestRibbonClient testRibbonClient;
-	@Autowired DiscoveryClient discoveryClient;
-	@Autowired ServiceInstanceRegistration serviceDiscovery;
-	@Value("${spring.application.name}") String springAppName;
-	@Autowired IdUsingFeignClient idUsingFeignClient;
-	@Autowired Registration registration;
+	@Autowired
+	TestRibbonClient testRibbonClient;
 
-	@Test public void should_find_the_app_by_its_name_via_Ribbon() {
-		//expect:
+	@Autowired
+	DiscoveryClient discoveryClient;
+
+	@Autowired
+	ServiceInstanceRegistration serviceDiscovery;
+
+	@Value("${spring.application.name}")
+	String springAppName;
+
+	@Autowired
+	IdUsingFeignClient idUsingFeignClient;
+
+	@Autowired
+	Registration registration;
+
+	@Test
+	public void should_find_the_app_by_its_name_via_Ribbon() {
+		// expect:
 		then(registeredServiceStatusViaServiceName()).isEqualTo("UP");
 	}
 
-	@Test public void should_find_a_collaborator_via_discovery_client() {
-		//given:
-		List<ServiceInstance> instances = this.discoveryClient.getInstances(this.springAppName);
+	@Test
+	public void should_find_a_collaborator_via_discovery_client() {
+		// given:
+		List<ServiceInstance> instances = this.discoveryClient
+				.getInstances(this.springAppName);
 		ServiceInstance instance = instances.get(0);
-		//expect:
+		// expect:
 		then(registeredServiceStatus(instance)).isEqualTo("UP");
 		then(instance.getInstanceId()).isEqualTo("ribbon-instance-id-123");
-		then(instance.getMetadata().get("testMetadataKey")).isEqualTo("testMetadataValue");
+		then(instance.getMetadata().get("testMetadataKey"))
+				.isEqualTo("testMetadataValue");
 		then(instance).isInstanceOf(ZookeeperServiceInstance.class);
 		ZookeeperServiceInstance zkInstance = (ZookeeperServiceInstance) instance;
 		then(zkInstance.getServiceInstance().getId()).isEqualTo("ribbon-instance-id-123");
 	}
 
-	@Test public void should_present_application_name_as_id_of_the_service_instance() {
-		//given:
-		//expect:
+	@Test
+	public void should_present_application_name_as_id_of_the_service_instance() {
+		// given:
+		// expect:
 		then(this.springAppName).isEqualTo(this.registration.getServiceId());
 	}
 
-	@Test public void should_service_instance_uri_match_uriSpec() {
-		//given:
-		//expect:
+	@Test
+	public void should_service_instance_uri_match_uriSpec() {
+		// given:
+		// expect:
 		then(this.registration.getUri()).hasPath("/contextPath");
 	}
 
-	@Test public void should_find_an_instance_using_feign_via_service_id() {
+	@Test
+	public void should_find_an_instance_using_feign_via_service_id() {
 		final IdUsingFeignClient idUsingFeignClient = this.idUsingFeignClient;
-		//expect:
+		// expect:
 		Awaitility.await().until(() -> {
 			then(idUsingFeignClient.hi()).isNotEmpty();
 			return true;
@@ -100,23 +131,29 @@ public class ZookeeperDiscoveryTests {
 	}
 
 	private String registeredServiceStatusViaServiceName() {
-		return JsonPath.builder(this.testRibbonClient.thisHealthCheck()).field("status").read(String.class);
+		return JsonPath.builder(this.testRibbonClient.thisHealthCheck()).field("status")
+				.read(String.class);
 	}
 
 	private String registeredServiceStatus(ServiceInstance instance) {
-		return JsonPath.builder(this.testRibbonClient.callOnUrl(instance.getHost()+":"+instance.getPort(), BASE_PATH + "/health")).field("status").read(String.class);
+		return JsonPath.builder(this.testRibbonClient.callOnUrl(
+				instance.getHost() + ":" + instance.getPort(), BASE_PATH + "/health"))
+				.field("status").read(String.class);
 	}
 
-	@Test public void should_properly_find_local_instance() {
-		//expect:
-		then(this.serviceDiscovery.getServiceInstance().getAddress()).isEqualTo(this.registration.getHost());
+	@Test
+	public void should_properly_find_local_instance() {
+		// expect:
+		then(this.serviceDiscovery.getServiceInstance().getAddress())
+				.isEqualTo(this.registration.getHost());
 	}
-	
-	
+
 	@FeignClient("ribbonApp")
 	public interface IdUsingFeignClient {
+
 		@RequestMapping(method = RequestMethod.GET, value = "/hi")
 		String hi();
+
 	}
 
 	@Configuration
@@ -127,7 +164,8 @@ public class ZookeeperDiscoveryTests {
 	@RestController
 	static class Config {
 
-		@Bean TestRibbonClient testRibbonClient(@LoadBalanced RestTemplate restTemplate,
+		@Bean
+		TestRibbonClient testRibbonClient(@LoadBalanced RestTemplate restTemplate,
 				@Value("${spring.application.name}") String springAppName) {
 			return new TestRibbonClient(restTemplate, springAppName);
 		}
@@ -136,14 +174,18 @@ public class ZookeeperDiscoveryTests {
 		public String hi() {
 			return "hi";
 		}
+
 	}
 
 	@Controller
 	@Profile("ribbon")
 	class PingController {
 
-		@RequestMapping("/ping") String ping() {
+		@RequestMapping("/ping")
+		String ping() {
 			return "pong";
 		}
+
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeperLifecycleRegistrationDisabledTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@ import java.util.List;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -29,31 +30,34 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
 import org.springframework.test.context.junit4.SpringRunner;
 
-import static org.junit.Assert.assertTrue;
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.RANDOM_PORT;
 
 /**
  * @author Spencer Gibb
  */
 @RunWith(SpringRunner.class)
-@SpringBootTest(classes = ZookeeperLifecycleRegistrationDisabledTests.TestPropsConfig.class,
-	properties = { "spring.application.name=myTestNotRegisteredService",
-		"spring.cloud.zookeeper.discovery.register=false", "spring.cloud.zookeeper.dependency.enabled=false"},
-		webEnvironment = RANDOM_PORT)
+@SpringBootTest(classes = ZookeeperLifecycleRegistrationDisabledTests.TestPropsConfig.class, properties = {
+		"spring.application.name=myTestNotRegisteredService",
+		"spring.cloud.zookeeper.discovery.register=false",
+		"spring.cloud.zookeeper.dependency.enabled=false" }, webEnvironment = RANDOM_PORT)
 public class ZookeeperLifecycleRegistrationDisabledTests {
 
-
 	@Autowired
 	private ZookeeperDiscoveryClient client;
 
 	@Test
 	public void contextLoads() {
-		List<ServiceInstance> instances = this.client.getInstances("myTestNotRegisteredService");
-		assertTrue("service was registered", instances.isEmpty());
+		List<ServiceInstance> instances = this.client
+				.getInstances("myTestNotRegisteredService");
+		assertThat(instances.isEmpty()).as("service was registered").isTrue();
 	}
 
 	@Configuration
 	@EnableAutoConfiguration
 	@Import({ CommonTestConfig.class })
-	static class TestPropsConfig { }
+	static class TestPropsConfig {
+
+	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/ZookeeprDiscoveryNonWebAppTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2017 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,10 +16,12 @@
 
 package org.springframework.cloud.zookeeper.discovery;
 
+import com.jayway.awaitility.Awaitility;
 import org.apache.curator.test.TestingServer;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.WebApplicationType;
@@ -36,23 +38,24 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.client.RestTemplate;
 
-import com.jayway.awaitility.Awaitility;
-
 import static org.assertj.core.api.BDDAssertions.then;
 
 /**
  * Test for gh-91, using s-c-zookeeper in a non-web app.
+ *
  * @author Marcin Grzejszczak
  */
 public class ZookeeprDiscoveryNonWebAppTests {
 
 	TestingServer server;
+
 	String connectionString;
 
 	@Before
 	public void setup() throws Exception {
 		this.server = new TestingServer(SocketUtils.findAvailableTcpPort());
-		this.connectionString = "--spring.cloud.zookeeper.connectString=" + this.server.getConnectString();
+		this.connectionString = "--spring.cloud.zookeeper.connectString="
+				+ this.server.getConnectString();
 	}
 
 	@After
@@ -64,25 +67,29 @@ public class ZookeeprDiscoveryNonWebAppTests {
 	public void should_work_when_using_web_client_without_the_web_environment()
 			throws Exception {
 		SpringApplication producerApp = new SpringApplicationBuilder(HelloProducer.class)
-				.web(WebApplicationType.SERVLET)
-				.build();
-		SpringApplication clientApplication = new SpringApplicationBuilder(HelloClient.class)
-				.web(WebApplicationType.NONE)
-				.build();
+				.web(WebApplicationType.SERVLET).build();
+		SpringApplication clientApplication = new SpringApplicationBuilder(
+				HelloClient.class).web(WebApplicationType.NONE).build();
 
-		try (ConfigurableApplicationContext producerContext = producerApp.run(this.connectionString, "--server.port=0",
+		try (ConfigurableApplicationContext producerContext = producerApp.run(
+				this.connectionString, "--server.port=0",
 				"--spring.application.name=hello-world", "--debug")) {
-			try (final ConfigurableApplicationContext context = clientApplication.run(this.connectionString,
+			try (ConfigurableApplicationContext context = clientApplication.run(
+					this.connectionString,
 					"--spring.cloud.zookeeper.discovery.register=false")) {
 				Awaitility.await().until(new Runnable() {
-					@Override public void run() {
+					@Override
+					public void run() {
 						try {
 							HelloClient bean = context.getBean(HelloClient.class);
 							then(bean.discoveryClient.getServices()).isNotEmpty();
-							then(bean.discoveryClient.getInstances("hello-world")).isNotEmpty();
-							String string = bean.restTemplate.getForObject("http://hello-world/", String.class);
+							then(bean.discoveryClient.getInstances("hello-world"))
+									.isNotEmpty();
+							String string = bean.restTemplate
+									.getForObject("http://hello-world/", String.class);
 							then(string).isEqualTo("foo");
-						} catch (IllegalStateException e) {
+						}
+						catch (IllegalStateException e) {
 							throw new AssertionError(e);
 						}
 					}
@@ -91,9 +98,10 @@ public class ZookeeprDiscoveryNonWebAppTests {
 		}
 	}
 
-	@EnableAutoConfiguration(exclude = {JmxAutoConfiguration.class})
+	@EnableAutoConfiguration(exclude = { JmxAutoConfiguration.class })
 	@Configuration
 	static class HelloClient {
+
 		@LoadBalanced
 		@Bean
 		RestTemplate restTemplate() {
@@ -103,10 +111,12 @@ public class ZookeeprDiscoveryNonWebAppTests {
 		@Autowired
 		DiscoveryClient discoveryClient;
 
-		@Autowired RestTemplate restTemplate;
+		@Autowired
+		RestTemplate restTemplate;
+
 	}
 
-	@EnableAutoConfiguration(exclude = {JmxAutoConfiguration.class})
+	@EnableAutoConfiguration(exclude = { JmxAutoConfiguration.class })
 	@RestController
 	static class HelloProducer {
 
@@ -116,4 +126,5 @@ public class ZookeeprDiscoveryNonWebAppTests {
 		}
 
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/configclient/DiscoveryClientConfigServiceAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -39,7 +39,7 @@ import org.springframework.context.annotation.AnnotationConfigApplicationContext
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
-import static org.junit.Assert.assertEquals;
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.Mockito.atLeast;
 import static org.mockito.Mockito.mock;
@@ -70,14 +70,14 @@ public class DiscoveryClientConfigServiceAutoConfigurationTests {
 				"spring.cloud.zookeeper.discovery.instance-port:7001",
 				"spring.cloud.zookeeper.discovery.instance-host:foo",
 				"spring.cloud.config.discovery.service-id:configserver");
-		assertEquals( 1, this.context
-						.getBeanNamesForType(ZookeeperConfigServerAutoConfiguration.class).length);
-		ZookeeperDiscoveryClient client = this.context.getParent().getBean(
-				ZookeeperDiscoveryClient.class);
+		assertThat(this.context.getBeanNamesForType(
+				ZookeeperConfigServerAutoConfiguration.class).length).isEqualTo(1);
+		ZookeeperDiscoveryClient client = this.context.getParent()
+				.getBean(ZookeeperDiscoveryClient.class);
 		verify(client, atLeast(2)).getInstances("configserver");
 		ConfigClientProperties locator = this.context
 				.getBean(ConfigClientProperties.class);
-		assertEquals("http://foo:7001/", locator.getUri()[0]);
+		assertThat(locator.getUri()[0]).isEqualTo("http://foo:7001/");
 	}
 
 	private void setup(String... env) {
@@ -92,7 +92,8 @@ public class DiscoveryClientConfigServiceAutoConfigurationTests {
 		this.context = new AnnotationConfigApplicationContext();
 		this.context.setParent(parent);
 		this.context.register(PropertyPlaceholderAutoConfiguration.class,
-				ZookeeperConfigServerAutoConfiguration.class, ZookeeperAutoConfiguration.class,
+				ZookeeperConfigServerAutoConfiguration.class,
+				ZookeeperAutoConfiguration.class,
 				ZookeeperDiscoveryClientConfiguration.class);
 		this.context.refresh();
 	}

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/configclient/ZookeeperConfigServerAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,7 +28,6 @@ import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
 
 /**
  * @author Dave Syer
@@ -48,16 +47,19 @@ public class ZookeeperConfigServerAutoConfigurationTests {
 	public void offByDefault() {
 		this.context = new AnnotationConfigApplicationContext(
 				ZookeeperConfigServerAutoConfiguration.class);
-		assertEquals(0,
-				this.context.getBeanNamesForType(ZookeeperDiscoveryProperties.class).length);
+		assertThat(this.context
+				.getBeanNamesForType(ZookeeperDiscoveryProperties.class).length)
+				.isEqualTo(0);
 	}
 
 	@Test
 	public void onWhenRequested() {
 		setup("spring.cloud.config.server.prefix=/config");
-		assertEquals(1,
-				this.context.getBeanNamesForType(ZookeeperDiscoveryProperties.class).length);
-		ZookeeperDiscoveryProperties properties = this.context.getBean(ZookeeperDiscoveryProperties.class);
+		assertThat(this.context
+				.getBeanNamesForType(ZookeeperDiscoveryProperties.class).length)
+				.isEqualTo(1);
+		ZookeeperDiscoveryProperties properties = this.context
+				.getBean(ZookeeperDiscoveryProperties.class);
 		assertThat(properties.getMetadata()).containsEntry("configPath", "/config");
 	}
 
@@ -66,8 +68,7 @@ public class ZookeeperConfigServerAutoConfigurationTests {
 				PropertyPlaceholderAutoConfiguration.class,
 				ZookeeperConfigServerAutoConfiguration.class,
 				ConfigServerProperties.class, ZookeeperDiscoveryProperties.class)
-				.web(WebApplicationType.NONE)
-				.properties(env).run();
+						.web(WebApplicationType.NONE).properties(env).run();
 	}
 
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/dependency/DependencyConfig.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import java.util.Collection;
@@ -24,7 +40,8 @@ import static org.assertj.core.api.BDDAssertions.then;
 @Configuration
 @EnableAutoConfiguration
 @Import(CommonTestConfig.class)
-@EnableFeignClients(basePackageClasses = {AliasUsingFeignClient.class, IdUsingFeignClient.class})
+@EnableFeignClients(basePackageClasses = { AliasUsingFeignClient.class,
+		IdUsingFeignClient.class })
 public class DependencyConfig {
 
 	@Bean
@@ -61,17 +78,21 @@ class PortListener implements ApplicationListener<WebServerInitializedEvent> {
 
 @FeignClient("someAlias")
 interface AliasUsingFeignClient {
+
 	@RequestMapping(method = RequestMethod.GET, value = "/application/beans")
 	String getBeans();
 
 	@RequestMapping(method = RequestMethod.GET, value = "/checkHeaders")
 	String checkHeaders();
+
 }
 
 @FeignClient("nameWithoutAlias")
 interface IdUsingFeignClient {
+
 	@RequestMapping(method = RequestMethod.GET, value = "/application/beans")
 	String getBeans();
+
 }
 
 @RestController
@@ -83,21 +104,24 @@ class PingController {
 		this.portListener = portListener;
 	}
 
-	@RequestMapping("/ping") String ping() {
+	@RequestMapping("/ping")
+	String ping() {
 		return "pong";
 	}
 
-	@RequestMapping("/port") Integer port() {
+	@RequestMapping("/port")
+	Integer port() {
 		return this.portListener.getPort();
 	}
 
-	@RequestMapping("/checkHeaders") String checkHeaders(@RequestHeader("Content-Type") String contentType,
-														 @RequestHeader("header1")
-														 Collection<String> header1,
-														 @RequestHeader("header2") Collection<String> header2) {
+	@RequestMapping("/checkHeaders")
+	String checkHeaders(@RequestHeader("Content-Type") String contentType,
+			@RequestHeader("header1") Collection<String> header1,
+			@RequestHeader("header2") Collection<String> header2) {
 		then(contentType).isEqualTo("application/vnd.newsletter.v1+json");
 		then(header1).containsExactly("value1");
 		then(header2).containsExactly("value2");
 		return "ok";
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/dependency/StickyRuleTests.java

@@ -1,13 +1,33 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import java.net.URI;
 import java.util.List;
 import java.util.concurrent.Callable;
 
+import com.jayway.awaitility.Awaitility;
+import com.netflix.loadbalancer.IPing;
+import com.netflix.loadbalancer.NoOpPing;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.test.TestingServer;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -25,35 +45,36 @@ import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.util.SocketUtils;
 import org.springframework.web.client.RestTemplate;
 
-import com.jayway.awaitility.Awaitility;
-import com.netflix.loadbalancer.IPing;
-import com.netflix.loadbalancer.NoOpPing;
-
 /**
  * @author Marcin Grzejszczak
  */
 @RunWith(SpringRunner.class)
-@SpringBootTest(classes = StickyRuleTests.Config.class,
-		webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@SpringBootTest(classes = StickyRuleTests.Config.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 @ActiveProfiles("loadbalancerclient")
 public class StickyRuleTests {
 
-	@Autowired LoadBalancerClient loadBalancerClient;
-	@Autowired DiscoveryClient discoveryClient;
-	
+	@Autowired
+	LoadBalancerClient loadBalancerClient;
+
+	@Autowired
+	DiscoveryClient discoveryClient;
+
 	@Test
 	public void should_use_sticky_load_balancing_strategy_taken_from_Zookeeper_dependencies() {
-		//given:
-			System.setProperty("spring.cloud.zookeeper.dependency.ribbon.loadbalancer.checkping", "false");	
-		//expect:
-			thereAreTwoRegisteredServices();
-			URI uri = getUriForAlias();
-			Awaitility.await().until(uriMatchesTwice(uri));
+		// given:
+		System.setProperty(
+				"spring.cloud.zookeeper.dependency.ribbon.loadbalancer.checkping",
+				"false");
+		// expect:
+		thereAreTwoRegisteredServices();
+		URI uri = getUriForAlias();
+		Awaitility.await().until(uriMatchesTwice(uri));
 	}
 
 	private Callable<Boolean> uriMatchesTwice(final URI uri) {
 		return new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				return uriMatches() && uriMatches();
 			}
 
@@ -73,38 +94,47 @@ public class StickyRuleTests {
 		return alias != null ? alias.getUri() : null;
 	}
 
-
 	@Configuration
 	@EnableAutoConfiguration
 	@Profile("loadbalancerclient")
 	static class Config {
 
 		@Bean
-		@LoadBalanced RestTemplate loadBalancedRestTemplate() {
+		@LoadBalanced
+		RestTemplate loadBalancedRestTemplate() {
 			return new RestTemplate();
 		}
 
-		@Bean(destroyMethod = "close") TestingServer testingServer() throws Exception {
+		@Bean(destroyMethod = "close")
+		TestingServer testingServer() throws Exception {
 			return new TestingServer(SocketUtils.findAvailableTcpPort());
 		}
 
-		@Bean ZookeeperProperties zookeeperProperties() throws Exception {
+		@Bean
+		ZookeeperProperties zookeeperProperties() throws Exception {
 			ZookeeperProperties zookeeperProperties = new ZookeeperProperties();
-			zookeeperProperties.setConnectString("localhost:"+ testingServer().getPort());
+			zookeeperProperties
+					.setConnectString("localhost:" + testingServer().getPort());
 			return zookeeperProperties;
 		}
 
 		@Bean(initMethod = "start", destroyMethod = "stop")
 		TestServiceRegistrar serviceOne(CuratorFramework curatorFramework) {
-			return new TestServiceRegistrar(SocketUtils.findAvailableTcpPort(), curatorFramework);
+			return new TestServiceRegistrar(SocketUtils.findAvailableTcpPort(),
+					curatorFramework);
 		}
 
-		@Bean(initMethod = "start", destroyMethod = "stop") TestServiceRegistrar serviceTwo(CuratorFramework curatorFramework) {
-			return new TestServiceRegistrar(SocketUtils.findAvailableTcpPort(), curatorFramework);
+		@Bean(initMethod = "start", destroyMethod = "stop")
+		TestServiceRegistrar serviceTwo(CuratorFramework curatorFramework) {
+			return new TestServiceRegistrar(SocketUtils.findAvailableTcpPort(),
+					curatorFramework);
 		}
 
-		@Bean IPing noOpPing() {
+		@Bean
+		IPing noOpPing() {
 			return new NoOpPing();
 		}
+
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/dependency/StubsConfigurationTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import org.junit.Test;
@@ -11,30 +27,31 @@ public class StubsConfigurationTests {
 
 	@Test
 	public void should_return_empty_colon_separated_dependency_notation_if_empty_path_has_been_provided() {
-		//given:
+		// given:
 		String path = "";
-		//when:
+		// when:
 		StubsConfiguration stubsConfiguration = new StubsConfiguration(path);
-		//then:
+		// then:
 		then(stubsConfiguration.toColonSeparatedDependencyNotation()).isEqualTo("");
 	}
+
 	@Test
 	public void should_return_empty_colon_separated_dependency_notation_if_invalid_path_has_been_provided() {
-		//given:
+		// given:
 		String path = "pl/";
-		//when:
+		// when:
 		StubsConfiguration stubsConfiguration = new StubsConfiguration(path);
-		//then:
+		// then:
 		then(stubsConfiguration.toColonSeparatedDependencyNotation()).isEqualTo("");
 	}
 
 	@Test
 	public void should_properly_parse_invalid_colon_separated_path_into_empty_notation() {
-		//given:
+		// given:
 		String path = "pl/a";
-		//when:
+		// when:
 		StubsConfiguration stubsConfiguration = new StubsConfiguration(path);
-		//then:
+		// then:
 		then(stubsConfiguration.toColonSeparatedDependencyNotation()).isEqualTo("");
 		then(stubsConfiguration.getStubsGroupId()).isEqualTo("");
 		then(stubsConfiguration.getStubsArtifactId()).isEqualTo("");
@@ -43,12 +60,14 @@ public class StubsConfigurationTests {
 
 	@Test
 	public void should_parse_the_path_into_group_artifact_and_classifier() {
-		//given:
+		// given:
 		String path = "pl/a";
-		//when:
-		StubsConfiguration stubsConfiguration = new StubsConfiguration(new StubsConfiguration.DependencyPath(path));
-		//then:
-		then(stubsConfiguration.toColonSeparatedDependencyNotation()).isEqualTo("pl:a:stubs");
+		// when:
+		StubsConfiguration stubsConfiguration = new StubsConfiguration(
+				new StubsConfiguration.DependencyPath(path));
+		// then:
+		then(stubsConfiguration.toColonSeparatedDependencyNotation())
+				.isEqualTo("pl:a:stubs");
 		then(stubsConfiguration.getStubsGroupId()).isEqualTo("pl");
 		then(stubsConfiguration.getStubsArtifactId()).isEqualTo("a");
 		then(stubsConfiguration.getStubsClassifier()).isEqualTo("stubs");
@@ -56,13 +75,15 @@ public class StubsConfigurationTests {
 
 	@Test
 	public void should_properly_set_group_artifact_and_classifier() {
-		//when:
-		StubsConfiguration stubsConfiguration = new StubsConfiguration("pl", "a", "superstubs");
-		//then:
-		then(stubsConfiguration.toColonSeparatedDependencyNotation()).isEqualTo("pl:a:superstubs");
+		// when:
+		StubsConfiguration stubsConfiguration = new StubsConfiguration("pl", "a",
+				"superstubs");
+		// then:
+		then(stubsConfiguration.toColonSeparatedDependencyNotation())
+				.isEqualTo("pl:a:superstubs");
 		then(stubsConfiguration.getStubsGroupId()).isEqualTo("pl");
 		then(stubsConfiguration.getStubsArtifactId()).isEqualTo("a");
 		then(stubsConfiguration.getStubsClassifier()).isEqualTo("superstubs");
 	}
-	
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/dependency/ZookeeperDependenciesTest.java

@@ -1,51 +1,71 @@
-package org.springframework.cloud.zookeeper.discovery.dependency;
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-import org.junit.Test;
+package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
 
+import org.junit.Test;
+
 import static org.assertj.core.api.BDDAssertions.then;
 
 public class ZookeeperDependenciesTest {
 
-    @Test
-    public void should_properly_sanitize_dependency_path() {
-        // given:
-        Map<String, ZookeeperDependency> dependencies = new LinkedHashMap<>();
-        ZookeeperDependency cat = new ZookeeperDependency();
-        cat.setPath("/cats/cat");
-        dependencies.put("cat", cat);
-        ZookeeperDependency dog = new ZookeeperDependency();
-        dog.setPath("dogs/dog");
-        dependencies.put("dog", dog);
-        ZookeeperDependencies zookeeperDependencies = new ZookeeperDependencies();
-        zookeeperDependencies.setDependencies(dependencies);
-        // when:
-        zookeeperDependencies.init();
-        // then:
-        then(zookeeperDependencies.getDependencies().get("cat").getPath()).isEqualTo("/cats/cat");
-        then(zookeeperDependencies.getDependencies().get("dog").getPath()).isEqualTo("/dogs/dog");
-    }
+	@Test
+	public void should_properly_sanitize_dependency_path() {
+		// given:
+		Map<String, ZookeeperDependency> dependencies = new LinkedHashMap<>();
+		ZookeeperDependency cat = new ZookeeperDependency();
+		cat.setPath("/cats/cat");
+		dependencies.put("cat", cat);
+		ZookeeperDependency dog = new ZookeeperDependency();
+		dog.setPath("dogs/dog");
+		dependencies.put("dog", dog);
+		ZookeeperDependencies zookeeperDependencies = new ZookeeperDependencies();
+		zookeeperDependencies.setDependencies(dependencies);
+		// when:
+		zookeeperDependencies.init();
+		// then:
+		then(zookeeperDependencies.getDependencies().get("cat").getPath())
+				.isEqualTo("/cats/cat");
+		then(zookeeperDependencies.getDependencies().get("dog").getPath())
+				.isEqualTo("/dogs/dog");
+	}
 
-    @Test
-    public void should_properly_sanitize_dependency_path_with_prefix() {
-        // given:
-        Map<String, ZookeeperDependency> dependencies = new LinkedHashMap<>();
-        ZookeeperDependency cat = new ZookeeperDependency();
-        cat.setPath("/cats/cat");
-        dependencies.put("cat", cat);
-        ZookeeperDependency dog = new ZookeeperDependency();
-        dog.setPath("dogs/dog");
-        dependencies.put("dog", dog);
-        ZookeeperDependencies zookeeperDependencies = new ZookeeperDependencies();
-        zookeeperDependencies.setPrefix("animals/");
-        zookeeperDependencies.setDependencies(dependencies);
-        // when:
-        zookeeperDependencies.init();
-        // then:
-        then(zookeeperDependencies.getDependencies().get("cat").getPath()).isEqualTo("/animals/cats/cat");
-        then(zookeeperDependencies.getDependencies().get("dog").getPath()).isEqualTo("/animals/dogs/dog");
-    }
+	@Test
+	public void should_properly_sanitize_dependency_path_with_prefix() {
+		// given:
+		Map<String, ZookeeperDependency> dependencies = new LinkedHashMap<>();
+		ZookeeperDependency cat = new ZookeeperDependency();
+		cat.setPath("/cats/cat");
+		dependencies.put("cat", cat);
+		ZookeeperDependency dog = new ZookeeperDependency();
+		dog.setPath("dogs/dog");
+		dependencies.put("dog", dog);
+		ZookeeperDependencies zookeeperDependencies = new ZookeeperDependencies();
+		zookeeperDependencies.setPrefix("animals/");
+		zookeeperDependencies.setDependencies(dependencies);
+		// when:
+		zookeeperDependencies.init();
+		// then:
+		then(zookeeperDependencies.getDependencies().get("cat").getPath())
+				.isEqualTo("/animals/cats/cat");
+		then(zookeeperDependencies.getDependencies().get("dog").getPath())
+				.isEqualTo("/animals/dogs/dog");
+	}
 
-}
+}

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/dependency/ZookeeperDependenciesTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import java.util.Collection;
@@ -16,18 +32,14 @@ import static org.assertj.core.api.BDDAssertions.then;
 public class ZookeeperDependenciesTests {
 
 	private static final ZookeeperDependency EXPECTED_DEPENDENCY = new ZookeeperDependency(
-			"path",
-			LoadBalancerType.RANDOM,
-			"contentTypeTemplate",
-			"version",
-			defaultHeader(),
-			false,
-			""
-			);
+			"path", LoadBalancerType.RANDOM, "contentTypeTemplate", "version",
+			defaultHeader(), false, "");
+
 	private static final Map<String, ZookeeperDependency> DEPENDENCIES = defaultDependencies();
 
 	private static Map<String, Collection<String>> defaultHeader() {
-		return Collections.singletonMap("header", (Collection<String>) Collections.singletonList("value"));
+		return Collections.singletonMap("header",
+				(Collection<String>) Collections.singletonList("value"));
 	}
 
 	private static Map<String, ZookeeperDependency> defaultDependencies() {
@@ -37,59 +49,72 @@ public class ZookeeperDependenciesTests {
 	}
 
 	ZookeeperDependencies zookeeperDependencies = new ZookeeperDependencies();
-	
+
 	@Before
 	public void setup() {
 		this.zookeeperDependencies.setDependencies(DEPENDENCIES);
 	}
 
-	@Test public void should_retrieve_dependency_dependency_for_good_path() {
+	@Test
+	public void should_retrieve_dependency_dependency_for_good_path() {
 		// expect:
-		then(this.zookeeperDependencies.getDependencyForPath("path")).isEqualTo(EXPECTED_DEPENDENCY);
+		then(this.zookeeperDependencies.getDependencyForPath("path"))
+				.isEqualTo(EXPECTED_DEPENDENCY);
 	}
 
-	@Test public void should_retrieve_null_dependency_dependency_for_bad_path() {
+	@Test
+	public void should_retrieve_null_dependency_dependency_for_bad_path() {
 		// expect:
 		then(this.zookeeperDependencies.getDependencyForPath("unknownPath")).isNull();
 	}
 
-	@Test public void should_retrieve_dependency_for_good_alias() {
+	@Test
+	public void should_retrieve_dependency_for_good_alias() {
 		// expect:
-		then(this.zookeeperDependencies.getDependencyForAlias("alias")).isEqualTo(EXPECTED_DEPENDENCY);
+		then(this.zookeeperDependencies.getDependencyForAlias("alias"))
+				.isEqualTo(EXPECTED_DEPENDENCY);
 	}
 
-	@Test public void should_retrieve_null_dependency_for_bad_alias() {
+	@Test
+	public void should_retrieve_null_dependency_for_bad_alias() {
 		// expect:
 		then(this.zookeeperDependencies.getDependencyForAlias("unknownAlias")).isNull();
 	}
 
-	@Test public void should_retrieve_alias_for_good_path() {
+	@Test
+	public void should_retrieve_alias_for_good_path() {
 		// expect:
 		then(this.zookeeperDependencies.getAliasForPath("path")).isEqualTo("alias");
 	}
 
-	@Test public void should_retrieve_empty_alias_for_bad_path() {
+	@Test
+	public void should_retrieve_empty_alias_for_bad_path() {
 		// expect:
 		then(this.zookeeperDependencies.getAliasForPath("unkownPath")).isEmpty();
 	}
 
-	@Test public void should_retrieve_path_for_good_alias() {
+	@Test
+	public void should_retrieve_path_for_good_alias() {
 		// expect:
 		then(this.zookeeperDependencies.getPathForAlias("alias")).isEqualTo("path");
 	}
 
-	@Test public void should_retrieve_empty_path_for_bad_alias() {
+	@Test
+	public void should_retrieve_empty_path_for_bad_alias() {
 		// expect:
 		then(this.zookeeperDependencies.getPathForAlias("unknownAlias")).isEmpty();
 	}
 
-	@Test public void should_successfully_replace_version_in_content_type_template() {
+	@Test
+	public void should_successfully_replace_version_in_content_type_template() {
 		// given:
 		ZookeeperDependency zookeeperDependency = new ZookeeperDependency();
-		zookeeperDependency.setContentTypeTemplate("application/vnd.some-service.$version+json");
+		zookeeperDependency
+				.setContentTypeTemplate("application/vnd.some-service.$version+json");
 		zookeeperDependency.setVersion("v1");
 		// expect:
-		then(zookeeperDependency.getContentTypeWithVersion()).isEqualTo("application/vnd.some-service.v1+json");
+		then(zookeeperDependency.getContentTypeWithVersion())
+				.isEqualTo("application/vnd.some-service.v1+json");
 	}
-	
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/dependency/ZookeeperDiscoveryWithDependenciesIntegrationTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import java.util.List;
@@ -6,6 +22,7 @@ import java.util.concurrent.Callable;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -26,135 +43,168 @@ import static org.springframework.cloud.zookeeper.discovery.test.TestRibbonClien
  * @author Marcin Grzejszczak
  */
 @RunWith(SpringRunner.class)
-@SpringBootTest(classes = ZookeeperDiscoveryWithDependenciesIntegrationTests.Config.class,
-		properties = {"feign.hystrix.enabled=false", "debug=true", "management.endpoints.web.exposure.include=*"},
-	webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@SpringBootTest(classes = ZookeeperDiscoveryWithDependenciesIntegrationTests.Config.class, properties = {
+		"feign.hystrix.enabled=false", "debug=true",
+		"management.endpoints.web.exposure.include=*" }, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 @ActiveProfiles("dependencies")
 public class ZookeeperDiscoveryWithDependenciesIntegrationTests {
 
-	@Autowired TestRibbonClient testRibbonClient;
-	@Autowired DiscoveryClient discoveryClient;
-	@Autowired AliasUsingFeignClient aliasUsingFeignClient;
-	@Autowired IdUsingFeignClient idUsingFeignClient;
-	@Autowired ZookeeperDependencies zookeeperDependencies;
+	@Autowired
+	TestRibbonClient testRibbonClient;
 
-	@Test public void should_find_an_instance_via_path_when_alias_is_not_found() {
+	@Autowired
+	DiscoveryClient discoveryClient;
+
+	@Autowired
+	AliasUsingFeignClient aliasUsingFeignClient;
+
+	@Autowired
+	IdUsingFeignClient idUsingFeignClient;
+
+	@Autowired
+	ZookeeperDependencies zookeeperDependencies;
+
+	@Test
+	public void should_find_an_instance_via_path_when_alias_is_not_found() {
 		// given:
 		final DiscoveryClient discoveryClient = this.discoveryClient;
 		// expect:
 		await().until(new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				return !discoveryClient.getInstances("nameWithoutAlias").isEmpty();
 			}
 		});
 	}
 
-	@Test public void should_fill_out_properly_the_stub_section_of_a_dependency() {
+	@Test
+	public void should_fill_out_properly_the_stub_section_of_a_dependency() {
 		// given:
-		StubsConfiguration stubsConfiguration = this.zookeeperDependencies.getDependencies().get("someAlias").getStubsConfiguration();
+		StubsConfiguration stubsConfiguration = this.zookeeperDependencies
+				.getDependencies().get("someAlias").getStubsConfiguration();
 		// expect:
 		then(stubsConfiguration.getStubsGroupId()).isEqualTo("org.springframework");
 		then(stubsConfiguration.getStubsArtifactId()).isEqualTo("foo");
 		then(stubsConfiguration.getStubsClassifier()).isEqualTo("stubs");
 	}
 
-	@Ignore //FIXME 2.0.0
-	@Test public void should_find_an_instance_using_feign_via_serviceID_when_alias_is_not_found() {
+	@Ignore // FIXME 2.0.0
+	@Test
+	public void should_find_an_instance_using_feign_via_serviceID_when_alias_is_not_found() {
 		// given:
 		final IdUsingFeignClient idUsingFeignClient = this.idUsingFeignClient;
 		// expect:
 		await().until(new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				then(idUsingFeignClient.getBeans()).isNotEmpty();
 				return true;
 			}
 		});
 	}
 
-	@Ignore //FIXME 2.0.0
-	@Test public void should_find_a_collaborator_via_load_balanced_rest_template_by_using_its_alias_from_dependencies() {
+	@Ignore // FIXME 2.0.0
+	@Test
+	public void should_find_a_collaborator_via_load_balanced_rest_template_by_using_its_alias_from_dependencies() {
 		// expect:
 		await().until(new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				return callingServiceAtBeansEndpointIsNotEmpty();
 			}
 		});
 	}
 
-	@Ignore //FIXME 2.0.0
-	@Test public void should_find_a_collaborator_using_feign_by_using_its_alias_from_dependencies() {
+	@Ignore // FIXME 2.0.0
+	@Test
+	public void should_find_a_collaborator_using_feign_by_using_its_alias_from_dependencies() {
 		// given:
 		final AliasUsingFeignClient aliasUsingFeignClient = this.aliasUsingFeignClient;
 		// expect:
 		await().until(new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				then(aliasUsingFeignClient.getBeans()).isNotEmpty();
 				return true;
 			}
 		});
 	}
 
-	@Test public void should_have_headers_from_dependencies_attached_to_the_request_via_load_balanced_rest_template() {
+	@Test
+	public void should_have_headers_from_dependencies_attached_to_the_request_via_load_balanced_rest_template() {
 		// expect:
 		await().until(new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				callingServiceToCheckIfHeadersArePassed();
 				return true;
 			}
 		});
 	}
 
-	@Ignore //FIXME 2.0.0
-	@Test public void should_have_headers_from_dependencies_attached_to_the_request_via_feign() {
+	@Ignore // FIXME 2.0.0
+	@Test
+	public void should_have_headers_from_dependencies_attached_to_the_request_via_feign() {
 		// given:
 		final AliasUsingFeignClient aliasUsingFeignClient = this.aliasUsingFeignClient;
 		// expect:
 		await().until(new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				aliasUsingFeignClient.checkHeaders();
 				return true;
 			}
 		});
 	}
 
-	@Test public void should_find_a_collaborator_via_discovery_client() {
+	@Test
+	public void should_find_a_collaborator_via_discovery_client() {
 		// // given:
 		final DiscoveryClient discoveryClient = this.discoveryClient;
 		List<ServiceInstance> instances = discoveryClient.getInstances("someAlias");
 		final ServiceInstance instance = instances.get(0);
 		// expect:
 		await().until(new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				return callingServiceViaUrlOnBeansEndpointIsNotEmpty(instance);
 			}
 		});
 	}
 
-	@Test public void should_have_path_equal_to_prefixed_alias() {
+	@Test
+	public void should_have_path_equal_to_prefixed_alias() {
 		// given:
-		ZookeeperDependency dependency = this.zookeeperDependencies.getDependencyForAlias("aliasIsPath");
+		ZookeeperDependency dependency = this.zookeeperDependencies
+				.getDependencyForAlias("aliasIsPath");
 		// expect:
 		then(dependency.getPath()).isEqualTo("/aliasIsPath");
 	}
 
-	@Test public void should_have_prefixed_alias_equal_to_path() {
+	@Test
+	public void should_have_prefixed_alias_equal_to_path() {
 		// given:
-		ZookeeperDependency dependency = this.zookeeperDependencies.getDependencyForPath("/aliasIsPath");
+		ZookeeperDependency dependency = this.zookeeperDependencies
+				.getDependencyForPath("/aliasIsPath");
 		// expect:
 		then(dependency.getPath()).isEqualTo("/aliasIsPath");
 	}
 
-	@Test public void should_have_path_set_via_string_constructor() {
+	@Test
+	public void should_have_path_set_via_string_constructor() {
 		// given:
-		ZookeeperDependency dependency = this.zookeeperDependencies.getDependencyForAlias("anotherAlias");
+		ZookeeperDependency dependency = this.zookeeperDependencies
+				.getDependencyForAlias("anotherAlias");
 		// expect:
 		then(dependency.getPath()).isEqualTo("/myPath");
 	}
 
 	// #138
-	@Test public void should_parse_dependency_with_path() {
+	@Test
+	public void should_parse_dependency_with_path() {
 		// given:
-		StubsConfiguration someServiceStub = this.zookeeperDependencies.getDependencyForAlias("some-service").getStubsConfiguration();
+		StubsConfiguration someServiceStub = this.zookeeperDependencies
+				.getDependencyForAlias("some-service").getStubsConfiguration();
 		// expect:
 		then(someServiceStub.getStubsGroupId()).isEqualTo("io.company.department");
 		then(someServiceStub.getStubsArtifactId()).isEqualTo("some-service");
@@ -162,11 +212,16 @@ public class ZookeeperDiscoveryWithDependenciesIntegrationTests {
 	}
 
 	private boolean callingServiceAtBeansEndpointIsNotEmpty() {
-		return !this.testRibbonClient.callService("someAlias", BASE_PATH + "/beans").isEmpty();
+		return !this.testRibbonClient.callService("someAlias", BASE_PATH + "/beans")
+				.isEmpty();
 	}
 
-	private boolean callingServiceViaUrlOnBeansEndpointIsNotEmpty(ServiceInstance instance) {
-		return !this.testRibbonClient.callOnUrl(instance.getHost() + ":" + instance.getPort(), BASE_PATH + "/beans").isEmpty();
+	private boolean callingServiceViaUrlOnBeansEndpointIsNotEmpty(
+			ServiceInstance instance) {
+		return !this.testRibbonClient
+				.callOnUrl(instance.getHost() + ":" + instance.getPort(),
+						BASE_PATH + "/beans")
+				.isEmpty();
 	}
 
 	private void callingServiceToCheckIfHeadersArePassed() {
@@ -177,5 +232,8 @@ public class ZookeeperDiscoveryWithDependenciesIntegrationTests {
 	@EnableAutoConfiguration
 	@Import(DependencyConfig.class)
 	@Profile("dependencies")
-	static class Config { }
+	static class Config {
+
+	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/dependency/ZookeeperDiscoveryWithDyingDependenciesTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.dependency;
 
 import java.io.Closeable;
@@ -11,6 +27,7 @@ import org.apache.curator.test.TestingServer;
 import org.assertj.core.api.BDDAssertions;
 import org.junit.Ignore;
 import org.junit.Test;
+
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.cloud.zookeeper.discovery.test.TestRibbonClient;
@@ -28,33 +45,36 @@ import static com.jayway.awaitility.Awaitility.await;
 @Ignore
 public class ZookeeperDiscoveryWithDyingDependenciesTests {
 
-	private static final Log log = LogFactory.getLog(ZookeeperDiscoveryWithDyingDependenciesTests.class);
+	private static final Log log = LogFactory
+			.getLog(ZookeeperDiscoveryWithDyingDependenciesTests.class);
 
 	// Issue: #45
-	@Test public void should_refresh_a_dependency_in_Ribbon_when_the_dependency_has_deregistered_and_registered_in_Zookeeper()
+	@Test
+	public void should_refresh_a_dependency_in_Ribbon_when_the_dependency_has_deregistered_and_registered_in_Zookeeper()
 			throws Exception {
 		ConfigurableApplicationContext serverContext = null;
 		ConfigurableApplicationContext clientContext = null;
 		TestingServer testingServer = null;
 		try {
-			//given:
+			// given:
 			int zookeeperPort = SocketUtils.findAvailableTcpPort();
 			testingServer = new TestingServer(zookeeperPort);
 			System.setProperty("spring.jmx.enabled", "false");
-			System.setProperty("spring.cloud.zookeeper.connectString", "127.0.0.1:"+zookeeperPort);
-			//and:
+			System.setProperty("spring.cloud.zookeeper.connectString",
+					"127.0.0.1:" + zookeeperPort);
+			// and:
 			serverContext = contextWithProfile("server");
 			clientContext = contextWithProfile("client");
-			//and:
+			// and:
 			Integer serverPortBeforeDying = callServiceAtPortEndpoint(clientContext);
-			//and:
+			// and:
 			serverContext = restartContext(serverContext, "server");
-			//expect:
-			await().atMost(5, TimeUnit.SECONDS).until(
-					applicationHasStartedOnANewPort(clientContext, serverPortBeforeDying)
-			);
-		} finally {
-			//cleanup:
+			// expect:
+			await().atMost(5, TimeUnit.SECONDS).until(applicationHasStartedOnANewPort(
+					clientContext, serverPortBeforeDying));
+		}
+		finally {
+			// cleanup:
 			close(serverContext);
 			close(clientContext);
 			close(testingServer);
@@ -65,10 +85,13 @@ public class ZookeeperDiscoveryWithDyingDependenciesTests {
 			final ConfigurableApplicationContext clientContext,
 			final Integer serverPortBeforeDying) {
 		return new Callable<Boolean>() {
-			@Override public Boolean call() throws Exception {
+			@Override
+			public Boolean call() throws Exception {
 				try {
-					BDDAssertions.then(callServiceAtPortEndpoint(clientContext)).isNotEqualTo(serverPortBeforeDying);
-				} catch (Exception e) {
+					BDDAssertions.then(callServiceAtPortEndpoint(clientContext))
+							.isNotEqualTo(serverPortBeforeDying);
+				}
+				catch (Exception e) {
 					log.error("Exception occurred while trying to call the server", e);
 					return false;
 				}
@@ -78,26 +101,32 @@ public class ZookeeperDiscoveryWithDyingDependenciesTests {
 	}
 
 	private void close(Closeable closeable) throws IOException {
-		if(closeable != null) {
+		if (closeable != null) {
 			closeable.close();
 		}
 	}
+
 	private ConfigurableApplicationContext contextWithProfile(String profile) {
 		return new SpringApplicationBuilder(Config.class).profiles(profile).build().run();
 	}
 
-	private ConfigurableApplicationContext restartContext(ConfigurableApplicationContext configurableApplicationContext, String profile)
+	private ConfigurableApplicationContext restartContext(
+			ConfigurableApplicationContext configurableApplicationContext, String profile)
 			throws IOException {
 		close(configurableApplicationContext);
 		return contextWithProfile(profile);
 	}
 
 	private Integer callServiceAtPortEndpoint(ApplicationContext applicationContext) {
-		return applicationContext.getBean(TestRibbonClient.class).callService("testInstance", "port", Integer.class);
+		return applicationContext.getBean(TestRibbonClient.class)
+				.callService("testInstance", "port", Integer.class);
 	}
 
 	@Configuration
 	@EnableAutoConfiguration
 	@Import(DependencyConfig.class)
-	static class Config { }
+	static class Config {
+
+	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/test/CommonTestConfig.java

@@ -1,6 +1,23 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.test;
 
 import org.apache.curator.test.TestingServer;
+
 import org.springframework.cloud.client.loadbalancer.LoadBalanced;
 import org.springframework.cloud.zookeeper.ZookeeperProperties;
 import org.springframework.context.annotation.Bean;
@@ -8,21 +25,29 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.util.SocketUtils;
 import org.springframework.web.client.RestTemplate;
 
+/**
+ *
+ */
 @Configuration
 public class CommonTestConfig {
 
 	@Bean
-	@LoadBalanced RestTemplate loadBalancedRestTemplate() {
+	@LoadBalanced
+	RestTemplate loadBalancedRestTemplate() {
 		return new RestTemplate();
 	}
 
-	@Bean(destroyMethod = "close") TestingServer testingServer() throws Exception {
+	@Bean(destroyMethod = "close")
+	TestingServer testingServer() throws Exception {
 		return new TestingServer(SocketUtils.findAvailableTcpPort());
 	}
 
-	@Bean ZookeeperProperties zookeeperProperties(TestingServer testingServer) throws Exception {
+	@Bean
+	ZookeeperProperties zookeeperProperties(TestingServer testingServer)
+			throws Exception {
 		ZookeeperProperties zookeeperProperties = new ZookeeperProperties();
 		zookeeperProperties.setConnectString("localhost:" + testingServer.getPort());
 		return zookeeperProperties;
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/test/TestRibbonClient.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.test;
 
 import org.springframework.boot.actuate.autoconfigure.endpoint.web.WebEndpointProperties;
@@ -23,12 +39,13 @@ public class TestRibbonClient extends TestServiceRestClient {
 	}
 
 	public String thisHealthCheck() {
-		return this.restTemplate
-				.getForObject("http://" + this.thisAppName + BASE_PATH + "/health", String.class);
+		return this.restTemplate.getForObject(
+				"http://" + this.thisAppName + BASE_PATH + "/health", String.class);
 	}
 
 	public Integer thisPort() {
-		return this.restTemplate
-				.getForObject("http://" + this.thisAppName + "/port", Integer.class);
+		return this.restTemplate.getForObject("http://" + this.thisAppName + "/port",
+				Integer.class);
 	}
+
 }

spring-cloud-zookeeper-discovery/src/test/java/org/springframework/cloud/zookeeper/discovery/test/TestServiceRestClient.java

@@ -1,13 +1,31 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.cloud.zookeeper.discovery.test;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+
 import org.springframework.web.client.RestTemplate;
 
 /**
  * @author Marcin Grzejszczak
  */
 public class TestServiceRestClient {
+
 	private static final Log log = LogFactory.getLog(TestServiceRestClient.class);
 
 	protected final RestTemplate restTemplate;
@@ -17,7 +35,7 @@ public class TestServiceRestClient {
 	}
 
 	public <T> T callService(String alias, String endpoint, Class<T> clazz) {
-		String url = "http://" + alias +"/" + endpoint;
+		String url = "http://" + alias + "/" + endpoint;
 		log.info("Calling [" + url + "]");
 		return this.restTemplate.getForObject(url, clazz);
 	}
@@ -33,4 +51,5 @@ public class TestServiceRestClient {
 
 		return new RestTemplate().getForObject("http://" + url + endpoint, String.class);
 	}
+
 }