IV58531: DEADLOCK WHILE INITIALIZING A CLASSLOADER AFTER APPLYING IV36441

APAR status

• Closed as program error.

Error description

• Error Message: After applying the fix for IV36441, the JVM may
  intermittently deadlock while initializing a classloader. A
  javacore taken at this point may report a deadlock between
  threads that own "VM classloader blocks lock" and "VM class
  table lock".
  .
  Stack Trace: N/A
  .
  

Local fix

Problem summary

• The problem is caused by a race condition in the JVM.
  

Problem conclusion

• This APAR will be fixed in the following Java Releases:
     7 R1 SR1       (7.1.1.0)
     6 R1 SR8       (6.1.8.0)
     7    SR7       (7.0.7.0)
     6    SR16      (6.0.16.0)
  .
  The JVM has been updated to remove the race condition.
  

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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R270 PSY

     UP

• R260 PSY

     UP

• R600 PSY

     UP