Log4j2 logger not working for jenkins plugin

[varun...@gmail.com‏]

Hi,

I am trying to use Log4j2 for looging in jenkins plugin , as it includes some jar file,

which uses log4j2 for logging.

when I independently run jar, logging is working fine.

But when I include jar in jenkins Plugin, it is not logging any log.

What may be issue, i have also kept log4j2 properties file in resources folder, still not able

to log. can anyOne please help me here?

Thanks,

Varun

[Matt Sicker‏]

Are you using the audit-log plugin, too? That specifies a log4j2
config which probably overrides anything you're using.

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Matt Sicker
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[varun...@gmail.com‏]

Hi Matt,

Thanks for reply.

I am running mvn hpi:run for running jenkins locally. so it includes only jenkins standard plugin. so no audit-log plugin tool , i am using.

It creates log file on local machine but no log is written.

 but It successfully logs on jenkins system log.

I have also included an appender by providing TaskListener.getLogger() printStream as we can add output stream as appender.

to log on jenkins console but it does not work

Thanks,

Varun

[Matt Sicker‏]

Do you also have log4j-core in your plugin? What other dependencies do you have?

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[varun...@gmail.com‏]

Hi,

Below are details of maven dependency  which i have included

    <dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.11.0</version>
</dependency>

Thanks,

Varun

[varun...@gmail.com‏]

Hi Matt,

all dependencies are as below:

<dependencies>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.2</version>
</dependency>

<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.jenkins-ci.plugins</groupId>
<artifactId>job-dsl</artifactId>
<version>1.41</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.jenkins-ci.plugins</groupId>
<artifactId>structs</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.10.19</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.8.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.6</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>1.6.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito</artifactId>
<version>1.6.1</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.jetbrains/annotations -->
<dependency>
<groupId>org.jetbrains</groupId>
<artifactId>annotations-java5</artifactId>
<version>RELEASE</version>
<scope>compile</scope>

</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.11.0</version>
</dependency>

<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.6.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.6.3</version>
</dependency>


</dependencies>
<repositories>
<repository>
<id>repo.jenkins-ci.org</id>
<url>https://repo.jenkins-ci.org/public/</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>repo.jenkins-ci.org</id>
<url>https://repo.jenkins-ci.org/public/</url>
</pluginRepository>
</pluginRepositories>
</project>

[Tim Jacomb‏]

Can you post a link to the code? Or at least a new plugin generated off of archetypes where it doesn’t work for you?

Thanks

Tim

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[Matt Sicker‏]

Chances are there's some slf4j dependency interfering. Jenkins uses a
bridge for that into the java.util.logging API from what I've seen.

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[varun...@gmail.com‏]

Hi,

code is at https://github.com/varun-vikas/Jenkins_plugin 

@matt should I remove sl4j and only use log4j2 and try again?

Thanks,

Varun

[varun...@gmail.com‏]

Hi Matt,

Thanks , after removing slf4j, logging starts. 

Thanks,

Varun