remove log4j dependencies (#1675)

* upgrade to spring boot 1.5.2

* add full update to REST API

* modify ratings controller

* upgrade herold

* fix integration test

* fix integration test

* minor fix

* fix integration test

* fix integration test

* minor cleanup

* minor cleanup

* remove log4j properties

* use standard logbook.xml

* remove log4j dependencies

apache-fop/pom.xml

@@ -28,11 +28,6 @@
             <version>${org.slf4j.version}</version>
             <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
         <!-- test scoped -->
 

core-java/pom.xml

@@ -92,11 +92,6 @@
             <version>${org.slf4j.version}</version>
             <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>

core-java/src/test/java/org/baeldung/core/exceptions/FileNotFoundExceptionUnitTest.java

@@ -6,12 +6,14 @@ import java.io.FileNotFoundException;
 import java.io.FileReader;
 import java.io.IOException;
 
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.junit.Test;
 
 public class FileNotFoundExceptionUnitTest {
 
-    private static final Logger LOG = Logger.getLogger(FileNotFoundExceptionUnitTest.class);
+    private static final Logger LOG = LoggerFactory.getLogger(FileNotFoundExceptionUnitTest.class);
 
     private String fileName = Double.toString(Math.random());
 

couchbase-sdk/pom.xml

@@ -46,11 +46,6 @@
             <artifactId>jcl-over-slf4j</artifactId>
             <version>${org.slf4j.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
         <!-- Test-Scoped Dependencies -->
         <dependency>

deltaspike/pom.xml

@@ -201,12 +201,6 @@
             <artifactId>querydsl-jpa</artifactId>
             <version>${querydsl.version}</version>
         </dependency>
-
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
-            <version>${slf4j.version}</version>
-        </dependency>
     </dependencies>
 
     <build>

disruptor/pom.xml

@@ -40,11 +40,6 @@
             <artifactId>jcl-over-slf4j</artifactId>
             <version>${org.slf4j.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
         <!-- test scoped -->
 

feign/pom.xml

@@ -18,7 +18,6 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <feign.version>9.4.0</feign.version>
         <slf4j.version>1.7.21</slf4j.version>
-        <log4j.version>2.7</log4j.version>
         <lombok.version>1.16.12</lombok.version>
         <junit.version>4.12</junit.version>
         <maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
@@ -52,16 +51,6 @@
             <artifactId>slf4j-api</artifactId>
             <version>${slf4j.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-core</artifactId>
-            <version>${log4j.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-slf4j-impl</artifactId>
-            <version>${log4j.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>

feign/src/main/resources/log4j2.xml

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Configuration status="WARN">
-    <Appenders>
-        <Console name="Console" target="SYSTEM_OUT">
-            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36}:%n[+] %msg%n"/>
-        </Console>
-    </Appenders>
-
-    <Loggers>
-        <Root level="debug">
-            <AppenderRef ref="Console"/>
-        </Root>
-    </Loggers>
-</Configuration>

guava/pom.xml

@@ -76,11 +76,6 @@
             <version>${org.slf4j.version}</version>
             <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
 
         <dependency>

handling-spring-static-resources/pom.xml

@@ -155,11 +155,6 @@
             <version>${org.slf4j.version}</version>
             <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
     </dependencies>
 

httpclient/pom.xml

@@ -80,11 +80,6 @@
             <version>${org.slf4j.version}</version>
             <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
         <!-- test scoped -->
 

jackson/pom.xml

@@ -154,11 +154,6 @@
             <version>${org.slf4j.version}</version>
             <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
     </dependencies>
 

java-cassandra/pom.xml

@@ -49,11 +49,6 @@
             <version>${org.slf4j.version}</version>
             <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
         <dependency>
             <groupId>junit</groupId>

jsf/pom.xml

@@ -92,11 +92,6 @@
             <version>${org.slf4j.version}</version>
             <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
     </dependencies>
     <build>
         <plugins>

rest-testing/pom.xml

@@ -69,11 +69,6 @@
             <version>${org.slf4j.version}</version>
             <scope>runtime</scope>
         </dependency>
-        <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-            <groupId>org.slf4j</groupId>
-            <artifactId>log4j-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
 
         <!-- test scoped -->
 

solr/pom.xml

@@ -20,11 +20,6 @@
             <artifactId>solr-solrj</artifactId>
             <version>6.4.1</version>
         </dependency>
-        <dependency>
-            <groupId>log4j</groupId>
-            <artifactId>log4j</artifactId>
-            <version>1.2.16</version>
-        </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>

spring-all/pom.xml

@@ -129,10 +129,6 @@
 			<artifactId>jcl-over-slf4j</artifactId>
 			<!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
 		</dependency>
-		<dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
-			<groupId>org.slf4j</groupId>
-			<artifactId>log4j-over-slf4j</artifactId>
-		</dependency>
 
 		<!-- test scoped -->
 

spring-all/src/main/java/org/baeldung/scopes/ScopesController.java

@@ -2,14 +2,16 @@ package org.baeldung.scopes;
 
 import javax.annotation.Resource;
 
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;
 
 @Controller
 public class ScopesController {
-    public static final Logger LOG = Logger.getLogger(ScopesController.class);
+    public static final Logger LOG = LoggerFactory.getLogger(ScopesController.class);
 
     @Resource(name = "requestMessage")
     HelloMessageGenerator requestMessage;

spring-all/src/main/java/org/baeldung/startup/AllStrategiesExampleBean.java

@@ -1,6 +1,8 @@
 package org.baeldung.startup;
 
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Component;
@@ -11,7 +13,7 @@ import javax.annotation.PostConstruct;
 @Scope(value = "prototype")
 public class AllStrategiesExampleBean implements InitializingBean {
 
-    private static final Logger LOG = Logger.getLogger(AllStrategiesExampleBean.class);
+    private static final Logger LOG = LoggerFactory.getLogger(AllStrategiesExampleBean.class);
 
     public AllStrategiesExampleBean() {
         LOG.info("Constructor");

spring-all/src/main/java/org/baeldung/startup/EventListenerExampleBean.java

@@ -1,13 +1,15 @@
 package org.baeldung.startup;
 
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.context.event.ContextRefreshedEvent;
 import org.springframework.context.event.EventListener;
 import org.springframework.stereotype.Component;
 
 @Component
 public class EventListenerExampleBean {
-    private static final Logger LOG = Logger.getLogger(EventListenerExampleBean.class);
+    private static final Logger LOG = LoggerFactory.getLogger(EventListenerExampleBean.class);
 
     public static int counter;
 

spring-all/src/main/java/org/baeldung/startup/InitMethodExampleBean.java

@@ -1,23 +1,24 @@
 package org.baeldung.startup;
 
-import org.apache.log4j.Logger;
+import java.util.Arrays;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.core.env.Environment;
 import org.springframework.stereotype.Component;
 
-import java.util.Arrays;
-
 @Component
 @Scope(value = "prototype")
 public class InitMethodExampleBean {
 
-    private static final Logger LOG = Logger.getLogger(InitMethodExampleBean.class);
+    private static final Logger LOG = LoggerFactory.getLogger(InitMethodExampleBean.class);
 
     @Autowired
     private Environment environment;
 
     public void init() {
-        LOG.info(Arrays.asList(environment.getDefaultProfiles()));
+        LOG.info("Env Default Profiles", Arrays.asList(environment.getDefaultProfiles()));
     }
 }

spring-all/src/main/java/org/baeldung/startup/InitializingBeanExampleBean.java

@@ -1,25 +1,26 @@
 package org.baeldung.startup;
 
-import org.apache.log4j.Logger;
+import java.util.Arrays;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.core.env.Environment;
 import org.springframework.stereotype.Component;
 
-import java.util.Arrays;
-
 @Component
 @Scope(value = "prototype")
 public class InitializingBeanExampleBean implements InitializingBean {
 
-    private static final Logger LOG = Logger.getLogger(InitializingBeanExampleBean.class);
+    private static final Logger LOG = LoggerFactory.getLogger(InitializingBeanExampleBean.class);
 
     @Autowired
     private Environment environment;
 
     @Override
     public void afterPropertiesSet() throws Exception {
-        LOG.info(Arrays.asList(environment.getDefaultProfiles()));
+        LOG.info("Env Default Profiles", Arrays.asList(environment.getDefaultProfiles()));
     }
 }

spring-all/src/main/java/org/baeldung/startup/LogicInConstructorExampleBean.java

@@ -1,25 +1,22 @@
 package org.baeldung.startup;
 
-import org.apache.log4j.Logger;
+import java.util.Arrays;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.core.env.Environment;
 import org.springframework.stereotype.Component;
 
-import java.util.Arrays;
-
 @Component
 @Scope(value = "prototype")
 public class LogicInConstructorExampleBean {
 
-    private static final Logger LOG = Logger.getLogger(LogicInConstructorExampleBean.class);
-
-    private final Environment environment;
+    private static final Logger LOG = LoggerFactory.getLogger(LogicInConstructorExampleBean.class);
 
     @Autowired
     public LogicInConstructorExampleBean(Environment environment) {
-        this.environment = environment;
-
-        LOG.info(Arrays.asList(environment.getDefaultProfiles()));
+        LOG.info("Env Default Profiles", Arrays.asList(environment.getDefaultProfiles()));
     }
 }

spring-all/src/main/java/org/baeldung/startup/PostConstructExampleBean.java

@@ -1,25 +1,27 @@
 package org.baeldung.startup;
 
-import org.apache.log4j.Logger;
+import java.util.Arrays;
+
+import javax.annotation.PostConstruct;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.core.env.Environment;
 import org.springframework.stereotype.Component;
 
-import javax.annotation.PostConstruct;
-import java.util.Arrays;
-
 @Component
 @Scope(value = "prototype")
 public class PostConstructExampleBean {
 
-    private static final Logger LOG = Logger.getLogger(PostConstructExampleBean.class);
+    private static final Logger LOG = LoggerFactory.getLogger(PostConstructExampleBean.class);
 
     @Autowired
     private Environment environment;
 
     @PostConstruct
     public void init() {
-        LOG.info(Arrays.asList(environment.getDefaultProfiles()));
+        LOG.info("Env Default Profiles", Arrays.asList(environment.getDefaultProfiles()));
     }
 }

spring-all/src/main/java/org/baeldung/startup/StartupApplicationListenerExample.java

@@ -1,6 +1,8 @@
 package org.baeldung.startup;
 
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.event.ContextRefreshedEvent;
 import org.springframework.stereotype.Component;
@@ -8,7 +10,7 @@ import org.springframework.stereotype.Component;
 @Component
 public class StartupApplicationListenerExample implements ApplicationListener<ContextRefreshedEvent> {
 
-    private static final Logger LOG = Logger.getLogger(StartupApplicationListenerExample.class);
+    private static final Logger LOG = LoggerFactory.getLogger(StartupApplicationListenerExample.class);
 
     public static int counter;
 

spring-amqp-simple/src/main/java/com/baeldung/springamqpsimple/MessageConsumer.java

@@ -1,13 +1,14 @@
 package com.baeldung.springamqpsimple;
 
-import org.apache.log4j.LogManager;
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.stereotype.Component;
 
 @Component
 public class MessageConsumer {
 
-    private static final Logger logger = LogManager.getLogger(MessageConsumer.class);
+    private static final Logger logger = LoggerFactory.getLogger(MessageConsumer.class);
 
     public void receiveMessage(String message) {
         logger.info("Received Message: " + message);

spring-apache-camel/pom.xml

@@ -48,11 +48,6 @@
 			<artifactId>spring-context</artifactId>
 			<version>${env.spring.version}</version>
 		</dependency>
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-log4j12</artifactId>
-			<version>1.7.21</version>
-		</dependency>
 		<dependency>
 			<groupId>org.apache.camel</groupId>
 			<artifactId>camel-spring-javaconfig</artifactId>

spring-apache-camel/src/main/resources/log4j.xml

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
-<log4j:configuration debug="true"
-	xmlns:log4j='http://jakarta.apache.org/log4j/'>
-
-	<appender name="console" class="org.apache.log4j.ConsoleAppender">
-	    <layout class="org.apache.log4j.PatternLayout">
-		<param name="ConversionPattern"
-		  value="%-5p %c{1}:%L - %m%n" />
-	    </layout>
-	</appender>
-
-	<root>
-		<level value="WARN" />
-		<appender-ref ref="console" />
-	</root>
-
-</log4j:configuration>

spring-data-cassandra/pom.xml

@@ -94,11 +94,6 @@
 			<artifactId>jcl-over-slf4j</artifactId>
 			<version>${org.slf4j.version}</version>
 		</dependency>
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>log4j-over-slf4j</artifactId>
-			<version>${org.slf4j.version}</version>
-		</dependency>
 	</dependencies>
 	<build>
 		<plugins>

spring-data-couchbase-2/pom.xml

@@ -56,11 +56,6 @@
 			<artifactId>jcl-over-slf4j</artifactId>
 			<version>${org.slf4j.version}</version>
 		</dependency>
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>log4j-over-slf4j</artifactId>
-			<version>${org.slf4j.version}</version>
-		</dependency>
 
 		<!-- Test-Scoped Dependencies -->
 		<dependency>