IV93007: JAVA EXCEPTION HANDLER RECEIVES INCORRECT EXCEPTION REFERENCE

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: N/A
  .
  A Java exception handler receives either a null reference, or a
  reference to an exception object other than the one just caught.
  

Local fix

• The problem can be avoided by passing -Xjit:disableThrowToGoto.
  This option may have a minor impact on performance, but it can
  be restricted to the problematic method.
  

Problem summary

• For an exception throw operation, the JIT compiler attempts to
  statically determine the corresponding exception handler, and
  optimize the throw into a direct jump if possible. If the
  intermediate code contains a certain rare pattern of use of the
  caught exception, this transformation could fail to properly
  pass the exception object to the handler.
  

Problem conclusion

• The compiler has been modified so that the exception object will
  be passed to the handler correctly.
  .
  This APAR will be fixed in the following Java Releases:
     6    SR16 FP40 (6.0.16.40)
     6 R1 SR8 FP40  (6.1.8.40)
     7    SR10      (7.0.10.0)
     7 R1 SR4       (7.1.4.0)
  .
  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:

Fix information

• Fixed component name

  JIT

• Fixed component ID

  620700124

Applicable component levels

• R600 PSY

     UP

• R260 PSY

     UP

• R130 PSY

     UP