IV19714: CRASH USING REFLECTION AFTER CLASS REDEFINITION

APAR status

• Closed as program error.

Error description

• Error Message: After redefining classes using an instrumentation
  agent, a crash is observed attempting to invoke a method via
  reflection.
  .
  Stack Trace: 3XMTHREADINFO3           Java callstack:
  4XESTACKTRACE                at
  sun/reflect/NativeMethodAccessorImpl.invoke0(Native Method)
  4XESTACKTRACE                at
  sun/reflect/NativeMethodAccessorImpl.invoke(NativeMethodAccessor
  Impl.java:76)
  4XESTACKTRACE                at
  sun/reflect/DelegatingMethodAccessorImpl.invoke(DelegatingMethod
  AccessorImpl.java:43)
  4XESTACKTRACE                at
  java/lang/reflect/Method.invoke(Method.java:602)
  ...snip...
  .
  

Local fix

Problem summary

• The JVM was using the obsolete class to perform an index
  calculation on the method (in the new class) being invoked.
  

Problem conclusion

• This defect will be fixed in:
  6.0.1 SR2
  7.0.0 SR1
  .
  The JVM has been updated to determine the index correctly.
  

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