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java.lang.ClassCastException: weblogic.rmi.internal.BasicServerRef	at weblogic.rmi.cluster.ReplicaAwareRemoteObject.getRef(ReplicaAwareRemoteObject.java:132)	at weblogic.rmi.cluster.PrimarySecondaryRemoteObject.(PrimarySecondaryRemoteObject.java:34)	at weblogic.ejb20.manager.ReplicatedStatefulSessionManager.createSecondary(ReplicatedStatefulSessionManager.java:213)	at weblogic.ejb20.internal.StatefulEJBHome.createSecondary(StatefulEJBHome.java:272)	at com.elandtech.callcenter.pnr.ejb.PNRBean_1p90_HomeImpl_WLSkel.invoke(UnknownSource)	at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:305)	at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:93)	at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:274)	at weblogic.rmi.internal.BasicServerRef.dispatch(BasicServerRef.java:167)	at weblogic.rmi.internal.ServerRequest.sendOneWayRaw(ServerRequest.java:92)	at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:112)	at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:263)	at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:230)	at weblogic.rmi.internal.ProxyStub.invoke(ProxyStub.java:35)	at undefined.$Proxy116.createSecondary(Unknown Source)	at weblogic.ejb20.replication.ReplicatedBean.becomeSecondary(ReplicatedBean.java:112)	at weblogic.cluster.replication.WrappedRO.(WrappedRO.java:34)	at weblogic.cluster.replication.ReplicationManager$wroManager.create(ReplicationManager.java:366)	at weblogic.cluster.replication.ReplicationManager.create(ReplicationManager.java:1226)	at weblogic.cluster.replication.ReplicationManager_WLSkel.invoke(UnknownSource)	at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:305)	at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:274)	at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)	at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)	at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)