java.lang.UnsupportedOperationException: This exception has no message.

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java.lang.UnsupportedOperationException:
at com.tc.object.bytecode.NullManager.lookupOrCreateRoot(NullManager.java:57)
at com.tc.object.bytecode.ManagerUtil.lookupOrCreateRoot(ManagerUtil.java:134)
at beans.CustomerBean.__tc_setmap(CustomerBean.java)
at beans.CustomerBean.original$EasyBeans$postConstruct(CustomerBean.java:118)
at org.ow2.easybeans.gen.invocationcontext.beans.CustomerBean.EasyBeansInvocationContextImplpostConstructAROUNDINVOKE39797.proceed(Unknown Source)
at org.ow2.easybeans.transaction.interceptors.CMTRequiredTransactionInterceptor.intercept(CMTRequiredTransactionInterceptor.java:110)
at org.ow2.easybeans.gen.invocationcontext.beans.CustomerBean.EasyBeansInvocationContextImplpostConstructAROUNDINVOKE39797.proceed(Unknown Source)
at org.ow2.jonas.ejb.easybeans.JOnASENCInterceptor.intercept(JOnASENCInterceptor.java:67)
at org.ow2.easybeans.gen.invocationcontext.beans.CustomerBean.EasyBeansInvocationContextImplpostConstructAROUNDINVOKE39797.proceed(Unknown Source)
at beans.CustomerBean.postConstruct(CustomerBean.java)
at beans.CustomerBean.beanPostConstruct$generated(CustomerBean.java)
at org.ow2.easybeans.gen.invocationcontext.beans.CustomerBean.EasyBeansInvocationContextImplbeanPostConstruct$generatedPOSTCONSTRUCT39797.proceed(Unknown Source)
at org.ow2.jonas.ejb.easybeans.JOnASENCInterceptor.intercept(JOnASENCInterceptor.java:67)
at org.ow2.easybeans.gen.invocationcontext.beans.CustomerBean.EasyBeansInvocationContextImplbeanPostConstruct$generatedPOSTCONSTRUCT39797.proceed(Unknown Source)
at beans.CustomerBean.postConstructEasyBeansLifeCycle(CustomerBean.java)
at org.ow2.easybeans.container.session.SessionFactory.create(SessionFactory.java:151)
at org.ow2.easybeans.container.session.stateful.StatefulSessionFactory.create(StatefulSessionFactory.java:129)
at org.ow2.easybeans.container.session.stateful.StatefulSessionFactory.create(StatefulSessionFactory.java:54)
at org.ow2.util.pool.impl.JPool.get(JPool.java:256)
at org.ow2.easybeans.container.session.stateful.StatefulSessionFactory.getBean(StatefulSessionFactory.java:144)
at org.ow2.easybeans.container.session.stateful.StatefulSessionFactory.localCall(StatefulSessionFactory.java:180)
at org.ow2.easybeans.container.session.SessionFactory.rpcInvoke(SessionFactory.java:181)
at org.ow2.easybeans.rpc.rmi.server.RMIServerRPCImpl.getEJBResponse(RMIServerRPCImpl.java:106)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
at org.ow2.carol.rmi.jrmp.server.JUnicastServerRef.dispatch(JUnicastServerRef.java:161)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707)
at java.lang.Thread.run(Thread.java:595)

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