IX90090: CLASSCASTEXCEPTION DUE TO A WRONG LUDCL

APAR status

• Closed as program error.

Error description

• Error Message: java.lang.ClassCastException:
  com.ibm.wssvt.acme.annuity.common.bean.jaxbjpa.Contact
  incompatible with
  com.ibm.wssvt.acme.annuity.common.bean.jaxbjpa.Contact
  .
  Stack Trace: java.lang.ClassCastException:
  com.ibm.wssvt.acme.annuity.common.bean.jaxbjpa.Contact
  incompatible with
  com.ibm.wssvt.acme.annuity.common.bean.jaxbjpa.Contact
   >>  at
  com.ibm.wssvt.acme.annuity.common.business.ejbws.ejb3jaxws._EJSR
  emote0SLAnnuityMgmtSvcEJB30JAXWSBean_44d05e52_Tie.createContact(
  _EJSRemote0SLAnnuityMgmtSvcEJB30JAXWSBean_44d05e52_Tie.java)
   >>  at
  com.ibm.wssvt.acme.annuity.common.business.ejbws.ejb3jaxws._EJSR
  emote0SLAnnuityMgmtSvcEJB30JAXWSBean_44d05e52_Tie._invoke(_EJSRe
  mote0SLAnnuityMgmtSvcEJB30JAXWSBean_44d05e52_Tie.java)
   >>  at
  com.ibm.CORBA.iiop.ServerDelegate.dispatchInvokeHandler(ServerDe
  legate.java:661)
   >>  at
  com.ibm.CORBA.iiop.ServerDelegate.dispatch(ServerDelegate.java:5
  15)
   >>  at com.ibm.rmi.iiop.ORB.process(ORB.java:517)
   >>  at com.ibm.CORBA.iiop.ORB.process(ORB.java:1575)
   >>  at
  com.ibm.rmi.iiop.Connection.doRequestWork(Connection.java:2965)
   >>  at com.ibm.rmi.iiop.Connection.doWork(Connection.java:2848)
   >>  at
  com.ibm.rmi.iiop.WorkUnitImpl.doWork(WorkUnitImpl.java:64)
   >>  at
  com.ibm.ejs.oa.pool.PooledThread.run(ThreadPool.java:118)
   >>  at
  com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1783)
  .
  

Local fix

Problem summary

• A ClassCast Exception is seen when a method is invoked on the
  tie. It's a multi thread client test which makes multiple EJB
  calls on the server.
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR1
  6.0.1 SR2
  .
  It is caused by a popLUDCL() call being missed out. The skipping
  of the popLUDCL() causes a stale LUDCL to be left over in the
  thread local stack causing problems while invoking the tie. The
  tie is expected to be loaded by a thread context classloader,
  but instead is loaded by a stale LUDCL.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  PM66860

Fix information

• Fixed component name

  ORB

• Fixed component ID

  620700123

Applicable component levels

• R260 PSY

     UP