IV97950: JVM CRASHES IN METHODHANDLE IMPLEMENTATION

APAR status

• Closed as program error.

Error description

• Error Message: Segmentation error, or UnsatisfiedLinkError.
  .
  Stack Trace: The innermost stack frame is interpreted, and it
  belongs to a method whose name begins with
  invokeExact_thunkArchetype, declared on a subclass of
  MethodHandle in package java.lang.invoke.
  .
  

Local fix

• This issue can be avoided by passing
  -Xjit:disableEscapeAnalysis. This option may degrade
  performance, but it can be limited to the problematic method.
  

Problem summary

• In order to reduce the likelihood that a stack-allocated object
  will have to be moved to the heap, escape analysis devirtualizes
  calls where the object would escape. This devirtualization could
  be mistakenly applied to MethodHandle calls.
  

Problem conclusion

• Escape analysis has been modified so that it no longer attempts
  to devirtualize MethodHandle calls.
  .
  This APAR will be fixed in the following Java Releases:
   8 SR4 FP7 (8.0.4.7)
   7 R1 SR4 FP10 (7.1.4.10)
  .
  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:

• Fixed component name

  JIT

• Fixed component ID

  620700124

Applicable component levels

• R130 PSY

     UP