IV19638: EXCEPTION, CRASH OR INCORRECT BEHAVIOUR AFTER CLASS REDEFINITION

APAR status

• Closed as program error.

Error description

• Error Message: After using extended class redefinition to add or
  remove methods, three different kinds of failures are observed:
  1) IncompatibleClassChangeError
  2) Crash
  3) The modified class method is not run (the obsolete method is
  run instead)
  Currently, this can occur only while using the java debugger, as
  extended redefinition is not allowed for instrumentation agents.
  .
  Stack Trace: N/A
  .
  

Local fix

Problem summary

• The JVM was not correctly determining the set of classes which
  needed to be recreated (in extended redefinition, subclasses of
  redefined classes may need to be recreated as well).
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR1
  6.0.1 SR2
  6.0.0 SR11
  .
  JVM has been updated to correctly determine the set of classes
  which need to be recreated during extended redefinition.
  

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

• R260 PSY

     UP

• R600 PSY

     UP