Hello,

I know that using RoundRobin policy for SFSB is not best idea, but nevertheless 
i don't expect behavior described below.

When new member joins to cluster, client crashes with NPE exception:


  |      [java] Exception in thread "main" java.lang.NullPointerException
  |      [java]     at 
org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:61)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.aspects.remoting.ReplicantsManagerInterceptor.invoke(ReplicantsManagerInterceptor.java:51)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
  |      [java]     at 
org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:319)
  |      [java]     at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  |      [java]     at 
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  |      [java]     at 
org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  |      [java]     at 
org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  |      [java]     at 
org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  |      [java]     at 
org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
  |      [java]     at 
org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  |      [java]     at 
org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:190)
  |      [java]     at org.jboss.remoting.Client.invoke(Client.java:525)
  |      [java]     at org.jboss.remoting.Client.invoke(Client.java:488)
  |      [java]     at 
org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.aspects.remoting.ClusterChooserInterceptor.invoke(ClusterChooserInterceptor.java:77)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:53)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77)
  |      [java]     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |      [java]     at 
org.jboss.ejb3.stateful.StatefulClusteredProxy.invoke(StatefulClusteredProxy.java:103)
  |      [java]     at $Proxy2.sayHelloFrom(Unknown Source)
  |      [java]     at client.Client.main(Client.java:22)
  | 

Is it bug in jboss?
I use 4.0.5.GA-ejb3 version. I didn't change anything in default configuration.

Regards,
PM

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