Hello, I am relatively new to EJB3.0 and I am currently developing session and entity beans for a new application.
I'm using Jboss-4.0.5 and when I deploy the first time and I use a standalone application to test my sessionbeans, everything works fine. But when I redeploy my .jar application and use that standalone application again to invoke a sessionbean that passes a remote interface of another sessionbean, I get a classcastexception on PortableRemoteObject.narrow in the standalone application! This is the remote interface that I invoke to get another sessionbeans remote interface: @Remote public interface PermissionRemote { public SchoolsRemote getSchoolsBean();//UserlogRemote ulr); } And then the interface that causes the classcastexception: @Remote public interface SchoolsRemote { public boolean subscribeSchool(String adminFullName, String adminUserName, String adminEmail, String adminPhoneNumber, String adminPassword, String schoolName); //public School findSchool(int pKey); public String sayHi(); } The JBoss error: 11:08:09,078 ERROR [STDERR] java.lang.ClassCastException 11:08:09,078 ERROR [STDERR] at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229) 11:08:09,078 ERROR [STDERR] at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137) 11:08:09,078 ERROR [STDERR] at schoolTime.ejb.permission.PermissionBean.getSchoolsBean(Unknown Source) 11:08:09,078 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 11:08:09,078 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 11:08:09,078 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 11:08:09,078 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:585) 11:08:09,078 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) 11:08:09,078 ERROR [STDERR] at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) 11:08:09,078 ERROR [STDERR] at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor. java:63) 11:08:09,078 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,078 ERROR [STDERR] at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEn tityManagerInterceptor.java:54) 11:08:09,078 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,078 ERROR [STDERR] at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) 11:08:09,078 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,078 ERROR [STDERR] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) 11:08:09,078 ERROR [STDERR] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197) 11:08:09,078 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,078 ERROR [STDERR] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) 11:08:09,078 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,078 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor. java:62) 11:08:09,078 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,109 ERROR [STDERR] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java :77) 11:08:09,109 ERROR [STDERR] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor .java:131) 11:08:09,109 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,109 ERROR [STDERR] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) 11:08:09,109 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,109 ERROR [STDERR] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:10 6) 11:08:09,109 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 11:08:09,109 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:263) 11:08:09,109 ERROR [STDERR] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106) 11:08:09,109 ERROR [STDERR] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandle r.java:82) 11:08:09,109 ERROR [STDERR] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828) 11:08:09,109 ERROR [STDERR] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681) 11:08:09,109 ERROR [STDERR] at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358) 11:08:09,109 ERROR [STDERR] at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398) 11:08:09,109 ERROR [STDERR] at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239) 11:08:09,109 ERROR [STDERR] Caused by: java.lang.ClassCastException: $Proxy93 11:08:09,109 ERROR [STDERR] at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:212) 11:08:09,109 ERROR [STDERR] ... 36 more If anybody can help, I will be most grateful. 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