tomcat6.0报错，急求高手解答

tomcat6.0报错，急求高手解答，详细见下：信息: Setting cluster mcast soTimeout to 500
2010-11-12 23:20:52 org.apache.catalina.tribes.membership.McastServiceImpl waitForMembers
信息: Sleeping for 1000 milliseconds to establish cluster membership, start level:4
2010-11-12 23:20:53 org.apache.catalina.tribes.membership.McastServiceImpl waitForMembers
信息: Done sleeping, membership established, start level:4
2010-11-12 23:20:53 org.apache.catalina.tribes.membership.McastServiceImpl waitForMembers
信息: Sleeping for 1000 milliseconds to establish cluster membership, start level:8
2010-11-12 23:20:53 org.apache.catalina.tribes.membership.McastServiceImpl$ReceiverThread run
警告: Error receiving mcast package. Sleeping 500ms
java.lang.IllegalArgumentException: Invalid package, should start with:{84, 82, 73, 66, 69, 83, 45, 66}
at org.apache.catalina.tribes.membership.MemberImpl.getMember(MemberImpl.java:322)
at org.apache.catalina.tribes.membership.MemberImpl.getMember(MemberImpl.java:298)
at org.apache.catalina.tribes.membership.MemberImpl.getMember(MemberImpl.java:403)
at org.apache.catalina.tribes.membership.McastServiceImpl.receive(McastServiceImpl.java:319)
at org.apache.catalina.tribes.membership.McastServiceImpl$ReceiverThread.run(McastServiceImpl.java:413)
2010-11-12 23:20:54 org.apache.catalina.tribes.membership.McastServiceImpl waitForMembers
信息: Done sleeping, membership established, start level:8
2010-11-12 23:20:55 org.apache.catalina.core.StandardContext addApplicationListener
信息: The listener "listeners.ContextListener" is already configured for this context. The duplicate definition has been ignored.
2010-11-12 23:20:55 org.apache.catalina.core.StandardContext addApplicationListener
信息: The listener "listeners.SessionListener" is already configured for this context. The duplicate definition has been ignored.
2010-11-12 23:20:55 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2010-11-12 23:20:55 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2010-11-12 23:20:55 org.apache.catalina.ha.session.JvmRouteBinderValve start
信息: JvmRouteBinderValve started
2010-11-12 23:20:55 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2010-11-12 23:20:55 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2010-11-12 23:20:55 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/35  config=null
2010-11-12 23:20:55 org.apache.catalina.startup.Catalina start
信息: Server startup in 3127 ms