Spring - SpringJUnit4ClassRunner still using LOG4J 1 instead of 2?

Spring - SpringJUnit4ClassRunner still using LOG4J 1 instead of 2? - java

I am using the SpringRunner class to guide my IT tests:
#ContextConfiguration(loader = AnnotationConfigContextLoader.class, classes = MyTestConfiguration.class)
#RunWith(SpringRunner.class)
class SomeTestIT {
// tests here
}
#Configuration
public class MyTestConfiguration {
}
I have the following Maven dependencies for log4j2:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-bom</artifactId>
<version>2.9.1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependencies>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.0.1.RELEASE</version>
<scope>test</scope>
</dependency>
My log4j2.xml looks as following:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration strict="true" monitorInterval="30" status="error">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%5p | %d | %F | %L | %m%n"/>
</Console>
</Appenders>
<Loggers>
<Root level="error">
<AppenderRef ref="Console"/>
</Root>
</Loggers>
</Configuration>
I have put this log4j2.xml in src/test/resources.
Now, when the tests are running, I get the following warnings:
log4j:WARN No appenders could be found for logger (org.springframework.test.context.junit4.SpringJUnit4ClassRunner).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
For some reason I cannot find, my log4j2 configuration is not being used for loggings from SpringRunner. How can I debug and hopefully fix this?
update
I do not think it is related, but just in case: I have also following dependencies:
<dependencies>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.25</version>
</dependency>

This is old log4j binding:
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.25</version>
</dependency>
Here slf4j-log4j12 states for slf4j over log4j v1.2
You should update your slf4j binding to
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.9.1</version>
</dependency>
Latest version is 2.9.1. Version earlier than 2.9.0 doesn't match your SLF4J API version.

Related

log4j2 not creating a rolling

I had an application working with log4j1. The configuration I have in the log4j.properties is working fine and it creates the file for log.
I migrate to log4j2 and now the file is not created, even though I follow the documentation. I try all the different solutions here but I can't make it work.
This is my log4j2.xml inside resources in my application
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="info" name="MyApp" packages="">
<Appenders>
<RollingFile name="RollingFile" fileName="tmp/app.log"
filePattern="logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="250 MB"/>
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="RollingFile"/>
</Root>
</Loggers>
This is the dependency in my pom.xml
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.17.1</version>
</dependency>
I tired changing the path of my file with the full path, changing the folder in case it was permissions problem.
I don't have any error, but when the application runs I don't see any file.
I even print 2 versions of log4j; log4j and log4j2. Log4j creates the file no problem, log4j2 don't
this is my file for log4j
log4j.properties
log4j.rootLogger=INFO, Appender1,Appender2
log4j.appender.Appender1=org.apache.log4j.RollingFileAppender
log4j.appender.Appender1.File=/tmp/info.log
log4j.appender.Appender1.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender1.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss.SSS} - logger1 - %-5p %c %m%n
log4j.appender.Appender1.Threshold=INFO
log4j.appender.Appender1.maxFileSize=10000KB
log4j.appender.Appender1.MaxBackupIndex=10
log4j.appender.Appender2=org.apache.log4j.RollingFileAppender
log4j.appender.Appender2.File=/tmp/errors.log
log4j.appender.Appender2.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender2.layout.ConversionPattern=%d{dd-mm-YYYY HH:mm:ss.SSS} %-5p %c %m%n
log4j.appender.Appender2.Threshold=ERROR
log4j.appender.Appender2.maxFileSize=10000KB
log4j.appender.Appender2.MaxBackupIndex=10
I'm new to this, can anybody help me with this?
what am I'm missing?
let me know if you need more information.
edit: adding the whole pom file in case something is wrong with it:
<?xml version="1.0" encoding="UTF-8"?>
4.0.0
org.springframework.boot
spring-boot-starter-parent
2.5.6
com.software
seguros
0.0.1-SNAPSHOT
seguros
Administracion de seguros
<java.version>1.8</java.version>
org.springframework.boot
spring-boot-starter-data-jpa
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mindrot</groupId>
<artifactId>jbcrypt</artifactId>
<version>0.4</version>
</dependency>
<dependency>
<groupId>com.jfoenix</groupId>
<artifactId>jfoenix</artifactId>
<version>8.0.10</version>
</dependency>
<!-- https://mvnrepository.com/artifact/eu.hansolo.enzo/Enzo -->
<dependency>
<groupId>eu.hansolo.enzo</groupId>
<artifactId>Enzo</artifactId>
<version>0.3.6</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.17.1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.17.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>5.1.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.2</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

You need to remove the 1.2.17 jar and add the log4j-api and log4j-core jars. It will solve the problem.

Could not initialize class org.apache.logging.log4j.core.LoggerContex

Due to the recent vulnerability found on Log4j, We were tasked to move to version >= 2.16.0. Initially, my project was using <version>1.2.17</version>
After adding the necessary dependency, and making the necessary changes, on initiating a request I get the below error:
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.logging.log4j.core.LoggerContext
My POM file
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.16.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.16.0</version>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>4.9.1</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.12</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>4.4.13</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20190722</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.10.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.10.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.10.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.10.2</version>
</dependency>
<dependency>
<groupId>org.codehaus.sonar</groupId>
<artifactId>sonar-plugin-api</artifactId>
<version>5.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>2.0.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator-annotation-processor</artifactId>
<version>6.0.2.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.woodstox</groupId>
<artifactId>woodstox-core</artifactId>
<version>5.0.2</version>
</dependency>
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity</artifactId>
<version>1.7</version>
</dependency>
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-tools</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>5.0.0</version>
</dependency>
<!-- Tests Dependencies -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>3.5.13</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-common</artifactId>
<version>2.22.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.eclipse.microprofile</groupId>
<artifactId>microprofile</artifactId>
<version>2.0.1</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
and my code and Log4J2 initialization
#Stateless
public class SessionKeyService {
private static final Logger LOGGER = LogManager.getLogger(SessionKeyService.class);
public String getSessionKeyID() {
try {
String url = properties.getProperty(Global.ENDPOINT_URL);
........
SessionKey sessionKey = new SessionKey();
sessionKey.setStatus(tokenObj.optString("Status"));
sessionKey.setMessage(tokenObj.optString("Message"));
sessionKey.setKey(tokenObj.optString("SessionKey"));
return sessionKey.getKey();
} catch (Exception ex) {
LOGGER.error("Error: "+ex);
}
return null;
}
Log4j2 XML file
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="info" name="AppName" packages="">
<Appenders>
<Console name="LogToConsole" target="SYSTEM_OUT">
<PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %m%n"/>
</Console>
<RollingFile name="LogToRollingFile" fileName="/opt/log/app-name.log"
filePattern="logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="50 MB" />
</Policies>
<DefaultRolloverStrategy max="10"/>
</RollingFile>
</Appenders>
<Loggers>
<Root level="INFO">
<!-- <AppenderRef ref="syslogAppender" />-->
<AppenderRef ref="LogToRollingFile"/>
<AppenderRef ref="LogToConsole" />
</Root>
</Loggers>
</Configuration>
Please, I don't know where the LoggerContext is coming up.

I found out that WildFly (WidlFly version 24) logging is conflicting with the app when trying to deploy.
SOLUTION:
I created a jboss-deployment-structure.xml in my /resources/webapp/WEB-INF/ and included the below
<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<deployment>
<exclude-subsystems>
<subsystem name="logging"/>
</exclude-subsystems>
</deployment>
</jboss-deployment-structure>

We faced this similar issue and found out that two of our project's dependencies were also transitively using log4j-core and log4j-api jars of different/same versions.
So at the run time there could have been a chance of conflict of multiple LoggerContext due to which we saw this error.
We removed the error by excluding that dependency as it was not necessary.And it worked fine for us.
Although we could also exclude directly log4j from the dependency to solve the issue like below.
<dependency>
<groupId>GroupId</groupId>
<artifactId>ArtifactId</artifactId>
<version>version</version>
<exclusions>
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
</exclusion>
</exclusions>
</dependency>

I encountered this error when I upgraded the log4j-core dependency (because earlier versions had a vulnerability) but I forgot to upgrade the log4j-api dependency. Upgrading both to the latest (at time of writing 2.16.0) fixed it for me.
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.16.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.16.0</version>
</dependency>

Gettting log4j error ERROR StatusLogger "No log4j2 configuration file found" while adding jmeter dependencies to my pom.xml

Here is my pom.xml. I am getting log4j errors and no information is being printed after getting the errors could any one help on these. I have seen many similar questions like this but none of them are working fine
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.walmart.testframrework</groupId>
<artifactId>testframework</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.apache.jmeter</groupId>
<artifactId>ApacheJMeter_core</artifactId>
<version>4.0</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.jmeter</groupId>
<artifactId>ApacheJMeter_jms</artifactId>
<version>4.0</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- <dependency>
<groupId>com.elega9t</groupId>
<artifactId>jmeter-jms-skip-jndi</artifactId>
<version>0.0.1</version>
</dependency> -->
<dependency>
<groupId>com.consol.citrus</groupId>
<artifactId>citrus-java-dsl</artifactId>
<version>2.7.3</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.testng/testng -->
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.14.3</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.consol.citrus/citrus-jms -->
<dependency>
<groupId>com.consol.citrus</groupId>
<artifactId>citrus-jms</artifactId>
<version>2.7.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.0.4.RELEASE</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.0.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.25</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.25</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.consol.citrus</groupId>
<artifactId>citrus-core</artifactId>
<version>2.7.3</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
my application is running fine until jmeter dependencies are not added. but after adding these dependencies it was printing the error like
ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console. Set system property 'log4j2.debug' to show Log4j2 internal initialization logging.
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file://dwshome-a.homeoffice.wal-mart.com/dwsuserdata$/avada2/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.10.0/log4j-slf4j-impl-2.10.0.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file://dwshome-a.homeoffice.wal-mart.com/dwsuserdata$/avada2/.m2/repository/org/slf4j/slf4j-log4j12/1.7.25/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Here are the jmeter dependencies that are defined in pom.xml
<dependency>
<groupId>org.apache.jmeter</groupId>
<artifactId>ApacheJMeter_core</artifactId>
<version>4.0</version>
</dependency>
<dependency>
<groupId>org.apache.jmeter</groupId>
<artifactId>ApacheJMeter_jms</artifactId>
<version>4.0</version>
</dependency>
<dependency>
<groupId>com.elega9t</groupId>
<artifactId>jmeter-jms-skip-jndi</artifactId>
<version>0.0.1</version>
</dependency>

Do you have a log4j2.xml under <maven_module>/src/test/resources ?
Here is an example configuration:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Properties>
<Property name="path">target</Property>
<Property name="logFileName">integration-tests-logs</Property>
<Property name="logPattern">%d{HH:mm:ss,SSS} %-5.5p %28.28c{2}| %m%n</Property>
</Properties>
<Appenders>
<Console name="console" target="SYSTEM_OUT">
<PatternLayout pattern="${logPattern}"/>
</Console>
<File name="logfile" fileName="${path}/${logFileName}.log" append="true">
<PatternLayout pattern="${logPattern}"/>
</File>
</Appenders>
<Loggers>
<Root level="DEBUG">
<AppenderRef ref="console"/>
<AppenderRef ref="logfile"/>
</Root>
<Logger name="org.eclipse.jetty" level="INFO" additivity="false">
<AppenderRef ref="console"/>
</Logger>
</Loggers>
</Configuration>
This basically configures logging in the console and generates a log file in the /target folder everytime you run your integration tests.

Logback Kafka Appender Not Writing Logs to Topic

I am trying to do a simple test of Logback Kafka Appender. Following is what I have in my logback.xml which I have placed in src/main/resources:
<?xml version="1.0" encoding="UTF-8"?>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder> <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
<!-- This is the kafkaAppender -->
<appender name="kafkaAppender"
class="com.github.danielwegener.logback.kafka.KafkaAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
<topic>test</topic>
<keyingStrategy
class="com.github.danielwegener.logback.kafka.keying.NoKeyKeyingStrategy" />
<deliveryStrategy
class="com.github.danielwegener.logback.kafka.delivery.AsynchronousDeliveryStrategy" />
<!-- Optional parameter to use a fixed partition -->
<!-- <partition>0</partition> -->
<!-- Optional parameter to include log timestamps into the kafka message -->
<!-- <appendTimestamp>true</appendTimestamp> -->
<!-- each <producerConfig> translates to regular kafka-client config (format:
key=value) -->
<!-- producer configs are documented here: https://kafka.apache.org/documentation.html#newproducerconfigs -->
<!-- bootstrap.servers is the only mandatory producerConfig -->
<producerConfig>bootstrap.servers=localhost:9092</producerConfig>
<!-- this is the fallback appender if kafka is not available. -->
<!-- <appender-ref ref="STDOUT" /> -->
</appender>
<logger name="com.my.package" level="info" additivity="false">
<appender-ref ref="kafkaAppender" />
</logger>
<root level="info">
<appender-ref ref="kafkaAppender" />
</root>
I have started a Kafka server on Windows with a separate Zookeeper. I have created a test topic as well.
Started Zookeeper on Windows with : zkServer.cmd
Started Kafka Server on Windows with : kafka-server-start.bat config\server.properties
Created a topic : kafka-topics.bat --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
Started a consumer on Windows with : kafka-console-consumer.bat --bootstrap-server localhost:9092 --topic test --from-beginning
In my Java class all I have is a logger inside a method.
private static final Logger logger =
LoggerFactory.getLogger(FormController.class);
logger.debug("DEBUG :: Inside do post method");
logger.info("INFO :: Inside do post method");
My imports are:
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
My pom.xml is as follows:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.my.package</groupId>
<artifactId>SampleIGApp</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>SampleIGApp Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.21</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-simple -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.21</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.kafka/kafka-clients -->
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>1.0.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.github.danielwegener/logback-kafka-appender -->
<dependency>
<groupId>com.github.danielwegener</groupId>
<artifactId>logback-kafka-appender</artifactId>
<version>0.2.0-RC1</version>
</dependency>
</dependencies>
<build>
<finalName>MyApp</finalName>
</build>
Can someone please tell me as to what am I doing wrong? Even if I comment out STDOUT appender-name, then also logs keep getting written to console, which in my case is Tomcat's catalina.out. I would appreciate any help. Thank you.

The documentation says you need to add logback-classic as dependency:
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
<scope>runtime</scope>
</dependency>
logback-kafka-appender

SLF4J and Log4j 2 binding Maven dependency

Hopefully a simple question but My google foo is failing me - I've got a maven project where we're using SLF4J with Log4J 1.2 bindings.
We now want to move to Log4j 2 particularly for the performance improvement - however, I can't for the life of me find the maven dependency for the log4j 2.0 binding. I've found some notes at http://logging.apache.org/log4j/2.x/log4j-slf4j-impl/ but no mention of any dependency info.
I'm also slightly confused by the fact there's apparently two ways to put slf4j on top of log4j2 (binding or adaptor)
What's the correct way to bind slf4j with log4j2 and how do I define the maven dependencies?
Editing to add some code following the 1st answer below, I'm getting exception:
Exception in thread "main" java.lang.NoSuchMethodError:
org/apache/logging/log4j/spi/AbstractLoggerWrapper.(Lorg/apache/logging/log4j/spi/AbstractLogger;Ljava/lang/String;)V
at org.slf4j.impl.SLF4JLogger.(SLF4JLogger.java:48)
POM:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>logging.test</groupId>
<artifactId>logtest2</artifactId>
<version>0.0.1</version>
<name>logtest2</name>
<description>logtest2</description>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.5</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j.adapters</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.0-beta3</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.0-beta9</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.0-beta9</version>
</dependency>
</dependencies>
My log4j.xml:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN" "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="A1" class="org.apache.log4j.FileAppender">
<param name="File" value="c:/logtest2.0/log.txt" />
<param name="Append" value="false" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %p %X{sessionId} %c MSG: %m%n" />
</layout>
</appender>
<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %p %X{sessionId} %c MSG: %m%n" />
</layout>
</appender>
<category name="org.apache.log4j.xml">
<priority value="debug" />
<appender-ref ref="A1" />
</category>
<root>
<priority value="debug" />
<appender-ref ref="STDOUT" />
</Root> </log4j:configuration>
and my test java class:
package loggertest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class LoggerTest {
public static final Logger LOGGER = LoggerFactory.getLogger(LoggerTest.class);
public static void main(final String[] p_args) throws InterruptedException {
LOGGER.debug("Logger test");
}
}

"org.apache.logging.log4j:log4j-slf4j-impl:2.0-beta9" -
LOG4J implementation of SLF4J API
"org.apache.logging.log4j:log4j-core:2.0-beta9" - Core LOG4J implementation
This, plus a valid log4j2.xml on the classpath should get you started.

If you like to divert jars that use commons logging, log4j1 and others as well redirected to slf4j and finally use log4j2 implementation for logging.. here is the set that need to be used...
Explanation: First two are excluding the log4j1 and commons-logging not there in classpath. log4j-over-slf4j and jcl-over-slf4j provide proxies that redirect to slf4j api. Remaining are log4j2 implementation dependencies.
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.17.1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.17.1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.17.1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-layout-template-json</artifactId>
<version>2.17.1</version>
</dependency>

We Keep Coding

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Spring - SpringJUnit4ClassRunner still using LOG4J 1 instead of 2? - java

Related

log4j2 not creating a rolling

Could not initialize class org.apache.logging.log4j.core.LoggerContex

Gettting log4j error ERROR StatusLogger "No log4j2 configuration file found" while adding jmeter dependencies to my pom.xml

Logback Kafka Appender Not Writing Logs to Topic

SLF4J and Log4j 2 binding Maven dependency

Categories

Resources