[EJB 2 in JBoss 5] Error on ClassCastException

[leethor5]

Hi everoby,

I have to migrate an application from JBoss 3.2 to JBoss 5.0.
The deployment is correct (I think) : I have no errors.

But when I want to acces my first EJB by login, I have a cast exception on a proxy object :

$Proxy855 cannot be cast to fr.monappli.modele.traitement.service._menu.delegate.MenuService

Is there differences between JBoss 3.0 ans JBoss 5.0 for EJB2 ? Am I missing something ?

Cordialy,
Julien.

[jaikiran]

Please post the entire exception stacktrace and the relevant code. Also do you package any JBoss specific jar files in your application? If yes, then remove them from the packaging.

[leethor5]

The entire exception is :

javax.naming.NameNotFoundException: fr.monappli.modele.traitement.service._menu.delegate.MenuService not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:771)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:779)
at org.jnp.server.NamingServer.getObject(NamingServer.java:785)
at org.jnp.server.NamingServer.lookup(NamingServer.java:443)
at sun.reflect.GeneratedMethodAccessor318.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:722)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:682)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at fr.gouv.defense.sicagem.modele.traitement.service._menu.ServiceAccessor.getMenuService(ServiceAccessor.java:32)
at fr.gouv.defense.sicagem.webapp._filter.UserContext.<init>(UserContext.java:77)
at fr.gouv.defense.sicagem.webapp._page.ApplicationAfficheAction.projectExecute(ApplicationAfficheAction.java:126)
at fr.gouv.defense.sicagem.webapp._strutsClasseBases.ActionBase.frameworkExecute(ActionBase.java:49)
at com.airial.framework.struts.FrameWorkAction.execute(FrameWorkAction.java:40)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
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.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:638)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:444)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:382)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:310)
at org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:696)
at org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:667)
at org.apache.jsp.logonVerifDpc_jsp._jspService(logonVerifDpc_jsp.java:113)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
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:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)

The revelant code :

String homeJndi = "fr/monappli/ejb/menu/MenuSL";

try {
 Hashtable<String, String> env = new Hashtable<String, String>();

 env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
 env.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
 env.put(Context.PROVIDER_URL, "localhost:1099");
 final Context context = new InitialContext(env);
 MenuService menuService = (MenuService) context.lookup(homeJndi);
 } catch(NamingException e) {
 e.printStackTrace();
 }

And what do you mean by "do you package any JBoss specific jar files in your application? If yes, then remove them from the packaging." ? I have a jar file with all my EJBs. It contains ejb-jar.xml, service.jndi.properties, ...; if i remove this one, everything will be broken ?

[leethor5]

context.lookup(homeJndi)

returns :

$Proxy855 : fr/monappli/ejb/menu/MenuSLHome

Any ideas ?