IV72528: CONSECUTIVE CALLS TO COM/IBM/DATAACCESS/BYTEARRAYMARSHALLER METO HDS MAY RETURN INCORRECT RESULTS

APAR status

• Closed as program error.

Error description

• Error Message: Consecutive calls to
  com/ibm/dataaccess/ByteArrayMarshaller or
  com/ibm/dataaccess/ByteArrayUnmarshaller may return incorrect
  results.
  .
  Stack Trace: N/A
  .
  The problem may occur when calls to the described methods are
  located in the same basic block.
  

Local fix

• This issue can be worked around using the
  -Xjit:disableIntrinsics option. Note however that adding this
  option will disable all hardware accelerated intrinsics which
  may impact performance.
  

Problem summary

• The problem is caused by an incorrect transformation by the JIT
  compiler optimizer in which parameters between the call sites to
  the described methods are incorrectly transformed.
  

Problem conclusion

• The JIT compiler optimizer has been updated to prevent the
  faulty transformations.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR1       (8.0.1.0)
     7 R1 SR3       (7.1.3.0)
  .
  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

• R130 PSY

     UP