Hi , I have a clustered env with JBoss Portal 2.4.1 with Apache as the web server. I am getting the following exception :

2007-05-02 19:17:15,590 DEBUG [org.jboss.invocation.pooled.server.ServerThread] beginning dorun
2007-05-02 19:17:15,591 ERROR [org.jboss.invocation.pooled.server.ServerThread] Failed to initialize
java.io.EOFException
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2228)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2694)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:761)
at java.io.ObjectInputStream.(ObjectInputStream.java:277)
at org.jboss.invocation.pooled.interfaces.OptimizedObjectInputStream.(OptimizedObjectInputStream.java:131)
at org.jboss.invocation.pooled.server.ServerThread.dorun(ServerThread.java:265)
at org.jboss.invocation.pooled.server.ServerThread.run(ServerThread.java:156)


Any pointers as to why this issue is occuring and how to resolve this will be greatly appreciated.
Thanks ,
A