IX90177: JAVA.LANG.CLASSCASTEXCEPTION IN ORB

APAR status

• Closed as program error.

Error description

• Error Message: java.lang.ClassCastException: {Implementation
  class} incompatible with {Interface class}
  originates from Tie class while casting the parameter class to
  remote method read from input stream.
  .
  Stack Trace: >> java.lang.ClassCastException:
  {Implementation_class} incompatible with {Interface_class}
  
   >> at
  xxxxxxxxxxx_Tie.{remote_method}
  
  (xxxxx_Tie.java:102)
   >> at xxxxxServant_XXXX_Tie._invoke
  (_XXXXXX_Tie.java)
   >> at com.ibm.CORBA.iiop.ServerDelegate.
  
  dispatchInvokeHandler(ServerDelegate.java:628)
   >> at com.ibm.CORBA.iiop.ServerDelegate.dispatch
  
  (ServerDelegate.java:510)
   >> at com.ibm.rmi.iiop.ORB.process(ORB.java:607)
  
   >> at
  com.ibm.CORBA.iiop.ORB.process(ORB.java:1583)
   >> at com.ibm.rmi.iiop.Connection.doRequestWork
  
  (Connection.java:3166)
   >> at
  com.ibm.rmi.iiop.Connection.doWork(Connection.java:
  3030)
   >> at
  com.ibm.rmi.iiop.WorkUnitImpl.doWork(WorkUnitImpl.
  java:64)
   >> at
  com.ibm.ws.giop.threadpool.WorkQueueElement.dispatch
  (WorkQueueElement.java:174)
   >> at com.ibm.ws.giop.threadpool.PooledThread.
  
  handleRequest(PooledThread.java:85)
   >> at com.ibm.ws.giop.threadpool.PooledThread.run
  
  (PooledThread.java:102)
   >> at
  com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.
  java:1881)
  .
  NA
  

Local fix

• NA
  

Problem summary

• java.lang.ClassCastException in ORB due to stale LUDCL entry in
  the LUDCL stack
  

Problem conclusion

• The LUDCL stack cleanup step added when new input stream gets
  created to avoid any possibility of stale entry in LUDCL stack
  .
  This APAR will be fixed in the following Java Releases:
   7 R1 SR4 (7.1.4.0)
   8 SR3 FP21 (8.0.3.21)
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, information about the available
  Service Refreshes and Fix Packs can be found at:
   https://www.ibm.com/developerworks/java/jdk/
  

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:

• Fixed component name

  ORB

• Fixed component ID

  620700123

Applicable component levels

• R260 PSY

     UP

• R270 PSY

     UP