Issue

• While using application level log4j we placed the "log4j.xml" file inside "$WAR_NAME/WEB-INF/classes" directory.

• Placed "log4j.jar" file inside "$WAR_NAME/WEB-INF/lib" directory, sothat the application can use it's own version of log4j.

• In order to exclude the jboss provided "log4j.jar" we are using following kind of "$WAR_NAME/META-INF/jboss-deployment-structure.xml" file.

<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
  <deployment>
    <exclusions>
        <module name="org.apache.log4j" />
    </exclusions>
  </deployment>
</jboss-deployment-structure>

Still at the time of application deployment we are seeing the following kind of Exception in JBoss EAP6.0 GA console.

18:05:41,507 ERROR [stderr] (MSC service thread 1-3) log4j:ERROR Could not create an Appender. Reported error follows.
18:05:41,509 ERROR [stderr] (MSC service thread 1-3) java.lang.ClassCastException: org.apache.log4j.DailyRollingFileAppender cannot be cast to org.apache.log4j.Appender
18:05:41,509 ERROR [stderr] (MSC service thread 1-3)    at org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java:248)
18:05:41,510 ERROR [stderr] (MSC service thread 1-3)    at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:176)
18:05:41,510 ERROR [stderr] (MSC service thread 1-3)    at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:191)
18:05:41,510 ERROR [stderr] (MSC service thread 1-3)    at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:523)
18:05:41,510 ERROR [stderr] (MSC service thread 1-3)    at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:492)
18:05:41,511 ERROR [stderr] (MSC service thread 1-3)    at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:1001)
18:05:41,511 ERROR [stderr] (MSC service thread 1-3)    at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:867)
18:05:41,511 ERROR [stderr] (MSC service thread 1-3)    at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:794)
18:05:41,512 ERROR [stderr] (MSC service thread 1-3)    at org.jboss.as.logging.LoggingConfigurationProcessor.deploy(LoggingConfigurationProcessor.java:111)
18:05:41,512 ERROR [stderr] (MSC service thread 1-3)    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:116)
18:05:41,513 ERROR [stderr] (MSC service thread 1-3)    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
18:05:41,513 ERROR [stderr] (MSC service thread 1-3)    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
18:05:41,513 ERROR [stderr] (MSC service thread 1-3)    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
18:05:41,514 ERROR [stderr] (MSC service thread 1-3)    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
18:05:41,514 ERROR [stderr] (MSC service thread 1-3)    at java.lang.Thread.run(Thread.java:722)