Class Cast Exception

[vinoth subramaniam]

Hi all,
I am a new to EJB. I am usind JBOSS 4.0.2, Xdoclet 1.2.3 and JDK 1.6 and EJB 2. When i tried to invoke the Stateless session bean. I am getting the ClassCastException error. Here is the Error.
Can you please help me to solve this issue..!

1. What are the configurations need to be done in JBOSS AS to use EJB?
2. Is there any problem with the versions of JBOSS, JDK, and Xdoclet. If so, what it is?

    
root cause 
 
java.lang.ClassCastException
com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229)
javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
com.tcs.Nulamda.EJBPackage.MyUtil.lookupHome(MyUtil.java:25)
com.tcs.Nulamda.EJBPackage.MyUtil.getHome(MyUtil.java:42)
com.tcs.Nulamda.action.GetSuspensDataAction.execute(GetSuspensDataAction.java:23)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
 

Error in the console

  
 
[B]java.lang.ClassCastException
at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229)
at javax.rmi.PortableRemoteObject.narrow[/B](PortableRemoteObject.java:137)
at com.tcs.Nulamda.EJBPackage.MyUtil.lookupHome(MyUtil.java:25)
at com.tcs.Nulamda.EJBPackage.MyUtil.getHome(MyUtil.java:42)
at com.tcs.Nulamda.action.GetSuspensDataAction.execute(GetSuspensDataAction.java:23)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.ClassCastException: $Proxy52
at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:212)
... 29 more
  

Thanks...

[vinoth subramaniam]

I searched in the saloon and found this Thread.
Saying that

As the ClassCastException is occuring during narrow there is a high probability that the war file is referencing a different version of the jar file containing Home and Remote interfaces. Please compile and create the client jar [jar containing Home and Remote to be specified in the classpath of web application] again with the latest source code [and compile with the same Java version as that of the jar file for EJB application] and redeploy the war file.

. How to do this exactly. I run the Xdoclet once again.But still i am getting the same error again and again. Please help me to out.