Configure org.apache.log4j.ConsoleAppender with custom classloader

Question

I have a java class which creates a custom classloader based on javassist class loader on start up and then run the real program class. I\'m getting the following error:

Answer 1

Add log4j.ignoreTCL in maven tomcat plugin configuration as shown in below

<plugin>
   <groupId>org.apache.tomcat.maven</groupId>
   <artifactId>tomcat7-maven-plugin</artifactId>
   <version>2.1</version>
   <configuration>
      <port>${local.server.port}</port>
      <update>true</update>
      <systemProperties>
         <log4j.configurationFile>${user.dir}\conf\log4j2.xml</log4j.configurationFile>
         <log4j.ignoreTCL>true</log4j.ignoreTCL>
         <java.util.logging.manager>org.apache.logging.log4j.jul.LogManager</java.util.logging.manager>
      </systemProperties>
      <contextReloadable>true</contextReloadable>
   </configuration>
</plugin>

Answer 2

Please try to set -Dlog4j.ignoreTCL=true, hope it helps. a simular issue about log4j