Polish

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/orm/jpa/HibernateMetricsAutoConfiguration.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 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.Collections;
 import java.util.Map;
 
 import javax.persistence.EntityManagerFactory;
+import javax.persistence.PersistenceException;
 
 import io.micrometer.core.instrument.MeterRegistry;
 import io.micrometer.core.instrument.binder.jpa.HibernateMetrics;
@@ -69,8 +70,14 @@ public class HibernateMetricsAutoConfiguration {
 	private void bindEntityManagerFactoryToRegistry(String beanName,
 			EntityManagerFactory entityManagerFactory) {
 		String entityManagerFactoryName = getEntityManagerFactoryName(beanName);
-		new HibernateMetrics(entityManagerFactory, entityManagerFactoryName,
-				Collections.emptyList()).bindTo(this.registry);
+		try {
+			new HibernateMetrics(entityManagerFactory.unwrap(SessionFactory.class),
+					entityManagerFactoryName, Collections.emptyList())
+							.bindTo(this.registry);
+		}
+		catch (PersistenceException ex) {
+			// Continue
+		}
 	}
 
 	/**

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/integrationtest/JerseyEndpointIntegrationTests.java

@@ -56,7 +56,7 @@ public class JerseyEndpointIntegrationTests {
 		testJerseyEndpoints(new Class[] { EndpointsConfiguration.class });
 	}
 
-	protected void testJerseyEndpoints(Class[] userConfigurations) {
+	protected void testJerseyEndpoints(Class<?>[] userConfigurations) {
 		FilteredClassLoader classLoader = new FilteredClassLoader(
 				DispatcherServlet.class);
 		new WebApplicationContextRunner(

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryConfigurerIntegrationTests.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -77,9 +77,7 @@ public class MeterRegistryConfigurerIntegrationTests {
 
 		@Bean
 		MeterRegistryCustomizer<?> testCustomizer() {
-			return (registry) -> {
-				registry.config().commonTags("testTag", "testValue");
-			};
+			return (registry) -> registry.config().commonTags("testTag", "testValue");
 		}
 
 		@Bean

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/elasticsearch/ElasticsearchJestHealthIndicatorTests.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -62,6 +62,7 @@ public class ElasticsearchJestHealthIndicatorTests {
 	}
 
 	@Test
+	@SuppressWarnings("unchecked")
 	public void elasticsearchWithYellowStatusIsUp() throws IOException {
 		given(this.jestClient.execute(any(Action.class)))
 				.willReturn(createJestResult(200, true, "yellow"));

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/neo4j/Neo4jHealthIndicatorTests.java

@@ -77,7 +77,7 @@ public class Neo4jHealthIndicatorTests {
 
 	@Test
 	public void neo4jDown() {
-		CypherException cypherException = new CypherException("Error executing Cypher",
+		CypherException cypherException = new CypherException(
 				"Neo.ClientError.Statement.SyntaxError",
 				"Unable to execute invalid Cypher");
 		given(this.session.query(Neo4jHealthIndicator.CYPHER, Collections.emptyMap()))

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/error/DefaultErrorWebExceptionHandler.java

@@ -134,7 +134,6 @@ public class DefaultErrorWebExceptionHandler extends AbstractErrorWebExceptionHa
 	protected Mono<ServerResponse> renderErrorResponse(ServerRequest request) {
 		boolean includeStackTrace = isIncludeStackTrace(request, MediaType.ALL);
 		Map<String, Object> error = getErrorAttributes(request, includeStackTrace);
-		HttpStatus errorStatus = getHttpStatus(error);
 		return ServerResponse.status(getHttpStatus(error))
 				.contentType(MediaType.APPLICATION_JSON_UTF8)
 				.body(BodyInserters.fromObject(error));

spring-boot-project/spring-boot-cli/src/main/java/org/springframework/boot/cli/compiler/GroovyCompiler.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -307,7 +307,6 @@ public class GroovyCompiler {
 
 	private static class MainClass {
 
-		@SuppressWarnings("unchecked")
 		public static ClassNode get(CompilationUnit source) {
 			return get(source.getAST().getClasses());
 		}

spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/AbstractApplicationContextRunnerTests.java

@@ -152,13 +152,9 @@ public abstract class AbstractApplicationContextRunnerTests<T extends AbstractAp
 	@Test
 	public void runWithClassLoaderShouldSetClassLoaderOnContext() {
 		get().withClassLoader(new FilteredClassLoader(Gson.class.getPackage().getName()))
-				.run((context) -> {
-					assertThatExceptionOfType(ClassNotFoundException.class)
-							.isThrownBy(() -> {
-								ClassUtils.forName(Gson.class.getName(),
-										context.getClassLoader());
-							});
-				});
+				.run((context) -> assertThatExceptionOfType(ClassNotFoundException.class)
+						.isThrownBy(() -> ClassUtils.forName(Gson.class.getName(),
+								context.getClassLoader())));
 	}
 
 	@Test

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/tasks/bundling/BootJar.java

@@ -55,9 +55,8 @@ public class BootJar extends Jar implements BootArchive {
 		getMainSpec().with(this.bootInf);
 		this.bootInf.into("classes", classpathFiles(File::isDirectory));
 		this.bootInf.into("lib", classpathFiles(File::isFile));
-		this.bootInf.filesMatching("module-info.class", (details) -> {
-			details.setRelativePath(details.getRelativeSourcePath());
-		});
+		this.bootInf.filesMatching("module-info.class",
+				(details) -> details.setRelativePath(details.getRelativeSourcePath()));
 		getRootSpec().eachFile((details) -> {
 			String pathString = details.getRelativePath().getPathString();
 			if (pathString.startsWith("BOOT-INF/lib/")

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/tasks/bundling/BootWar.java

@@ -54,9 +54,8 @@ public class BootWar extends War implements BootArchive {
 				(copySpec) -> copySpec.from(
 						(Callable<Iterable<File>>) () -> (this.providedClasspath != null)
 								? this.providedClasspath : Collections.emptyList()));
-		getRootSpec().filesMatching("module-info.class", (details) -> {
-			details.setRelativePath(details.getRelativeSourcePath());
-		});
+		getRootSpec().filesMatching("module-info.class",
+				(details) -> details.setRelativePath(details.getRelativeSourcePath()));
 		getRootSpec().eachFile((details) -> {
 			String pathString = details.getRelativePath().getPathString();
 			if ((pathString.startsWith("WEB-INF/lib/")