Remove blitz4j

fixes gh-527

pom.xml

@@ -265,12 +265,6 @@
 				<artifactId>xstream</artifactId>
 				<version>1.4.2</version>
 			</dependency>
-			<!-- Eureka server dep that is now optional -->
-			<dependency>
-				<groupId>com.netflix.blitz4j</groupId>
-				<artifactId>blitz4j</artifactId>
-				<version>1.36.0</version>
-			</dependency>
 			<dependency>
 				<groupId>com.netflix.feign</groupId>
 				<artifactId>feign-core</artifactId>

spring-cloud-netflix-eureka-server/pom.xml

@@ -46,10 +46,6 @@
 			<groupId>com.netflix.eureka</groupId>
 			<artifactId>eureka-client</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>com.netflix.blitz4j</groupId>
-			<artifactId>blitz4j</artifactId>
-		</dependency>
 		<dependency>
 			<groupId>com.sun.jersey</groupId>
 			<artifactId>jersey-servlet</artifactId>

spring-cloud-netflix-eureka-server/src/main/java/org/springframework/cloud/netflix/eureka/server/EurekaServerInitializerConfiguration.java

@@ -20,9 +20,7 @@ import java.io.IOException;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
-import java.util.Properties;
 
-import javax.annotation.PostConstruct;
 import javax.servlet.ServletContext;
 import javax.servlet.ServletContextEvent;
 
@@ -34,7 +32,6 @@ import org.springframework.aop.framework.ProxyFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.boot.logging.LoggingSystem;
 import org.springframework.boot.logging.log4j.Log4JLoggingSystem;
 import org.springframework.cloud.netflix.eureka.EurekaServerConfigBean;
 import org.springframework.cloud.netflix.eureka.server.advice.LeaseManagerLite;
@@ -49,13 +46,9 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.Ordered;
 import org.springframework.core.io.ClassPathResource;
-import org.springframework.core.io.support.PropertiesLoaderUtils;
-import org.springframework.util.ClassUtils;
 import org.springframework.util.ReflectionUtils;
 import org.springframework.web.context.ServletContextAware;
 
-import com.netflix.blitz4j.DefaultBlitz4jConfig;
-import com.netflix.blitz4j.LoggingConfiguration;
 import com.netflix.discovery.EurekaClient;
 import com.netflix.eureka.AbstractInstanceRegistry;
 import com.netflix.eureka.EurekaBootStrap;
@@ -92,37 +85,6 @@ public class EurekaServerInitializerConfiguration
 		this.servletContext = servletContext;
 	}
 
-	@PostConstruct
-	public void initLogging() {
-
-		if (!(LoggingSystem
-				.get(ClassUtils.getDefaultClassLoader()) instanceof Log4JLoggingSystem)) {
-
-			LoggingConfiguration off = new LoggingConfiguration() {
-				@Override
-				public void configure() {
-				}
-			};
-			Field instance = ReflectionUtils.findField(LoggingConfiguration.class,
-					"instance");
-			ReflectionUtils.makeAccessible(instance);
-			ReflectionUtils.setField(instance, null, off);
-			Field blitz4j = ReflectionUtils.findField(LoggingConfiguration.class,
-					"blitz4jConfig");
-			ReflectionUtils.makeAccessible(blitz4j);
-			try {
-				Properties props = PropertiesLoaderUtils
-						.loadAllProperties(new ClassPathResource("log4j.properties",
-								Log4JLoggingSystem.class).toString());
-				DefaultBlitz4jConfig blit4jConfig = new DefaultBlitz4jConfig(props);
-				ReflectionUtils.setField(blitz4j, off, blit4jConfig);
-			}
-			catch (IOException e) {
-			}
-
-		}
-	}
-
 	@Override
 	public void start() {
 		new Thread(new Runnable() {
@@ -143,7 +105,6 @@ public class EurekaServerInitializerConfiguration
 							catch (IOException ex) {
 								// ignore
 							}
-							LoggingConfiguration.getInstance().configure();
 							EurekaServerConfigurationManager.getInstance()
 									.setConfiguration(
 											EurekaServerInitializerConfiguration.this.eurekaServerConfig);

spring-cloud-netflix-eureka-server/src/test/java/org/springframework/cloud/netflix/eureka/server/Log4JLoggingSystemTests.java

@@ -31,8 +31,6 @@ import org.springframework.core.env.StandardEnvironment;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.util.StringUtils;
 
-import com.netflix.blitz4j.LoggingConfiguration;
-
 import static org.hamcrest.Matchers.equalTo;
 import static org.junit.Assert.assertThat;
 
@@ -56,7 +54,6 @@ public class Log4JLoggingSystemTests {
 		System.setProperty("log4j.configuration", new ClassPathResource(
 				"log4j.properties", Log4JLoggingSystem.class).getURL().toString());
 		this.logger = Logger.getLogger(getClass());
-		LoggingConfiguration.getInstance().configure();
 	}
 
 	@Test