[jboss-user] [Remoting] - RMI from JBoss 4.3 to JBoss 4.2

[boniek]

I'm trying to invoke in JBoss 4.3 eap hand compiled, remote method on my bean that is deployed on JBoss 4.2 as, but I get following error:
anonymous wrote : 2009-03-25 14:46:54,309 ERROR [org.apache.catalina.core.ContainerBase] 
  | Servlet.service() for servlet FileServlet threw exception
  | java.lang.ClassCastException: 
  | org.jboss.serial.io.MarshalledObjectForLocalCalls cannot be cast to 
  | java.lang.Integer
  |         at $Proxy208.addFile(Unknown Source)
  |         at 
  | test.FileServlet.saveFile(FileServlet.java:204)
  |         at 
  | test.FileServlet.service(FileServlet.java:117)
  |         at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  |         at 
  | org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
  |         at 
  | org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  |         at 
  | org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |         at 
  | org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  |         at 
  | org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  |         at 
  | org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
  |         at 
  | org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
  |         at 
  | org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
  |         at 
  | org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
  |         at 
  | org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
  |         at 
  | org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
  |         at 
  | org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
  |         at 
  | org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  |         at 
  | org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
  |         at 
  | org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
  |         at 
  | org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
  |         at 
  | org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
  |         at java.lang.Thread.run(Thread.java:619)
Any ideas as to why it does not work? What can I do about it?

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