Log4J Classloading Errors

Issue

• I am including log4j.jar in my application, and I'm trying to use a different Log4J appender than JBoss uses:

  <appender name="FILE" class="org.apache.log4j.RollingFileAppender">
  

• I do not include a Log4J configuration file in my application, but I want to use jboss-log4j.xml.

• When I initialize my application, I receive the following errors:

  2011-09-09 11:05:57,524 ERROR [STDERR] (main) log4j:ERROR A "org.jboss.logging.appender.FileAppender" object is not assignable to a "org.apache.log4j.Appender" variable.
  2011-09-09 11:05:57,524 ERROR [STDERR] (main) log4j:ERROR The class "org.apache.log4j.Appender" was loaded by 
  2011-09-09 11:05:57,524 ERROR [STDERR] (main) log4j:ERROR [BaseClassLoader@3358c3ef{vfszip:/apps/jboss-eap-5.1.0/server/default/deploy/myapp.ear/mywebapp.war/}] whereas object of type 
  2011-09-09 11:05:57,524 ERROR [STDERR] (main) log4j:ERROR "org.jboss.logging.appender.FileAppender" was loaded by [org.jboss.bootstrap.NoAnnotationURLClassLoader@354124d6].
  2011-09-09 11:05:57,524 ERROR [STDERR] (main) log4j:ERROR Could not instantiate appender named "FILE".