IZ95938: HANGING IN TIMER USING JAVA 6 SR9

APAR status

• Closed as program error.

Error description

• Error Message: Customer see a hang when using Timer of SR9
  .
  Stack Trace: N/A
  .
  From the java core file, a hanging operation calling
  Timer.cancel() can been seen.
  Java callstack: at java/lang/Object.wait(Native Method)
                  at java/lang/Object.wait(Bytecode PC:3(Compiled
  Code))
                  at java/lang/Thread.join(Bytecode PC:16)
                  at java/util/Timer.cancel(Bytecode PC:28)
  ...
  

Local fix

Problem summary

• The problem is caused by calling Thread.join(), there maybe
  deadlock between parent and child thread.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9 FP1
  .
  The code has been updated to avoid this deadlock.
  .
  To obtain the fix:
  Install build 20110107 or later
  

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

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R600 PSN

     UP