IJ30322: CRASH IN ADDDYINGCLASSESTOLIST

APAR status

• Closed as program error.

Error description

• Error Message: A SIGSEGV/GPF is received.
  .
  Stack Trace: The native stack trace looks like this:
   <signal handler called>
   MM_ClassLoaderManager::addDyingClassesToList()
   MM_ClassLoaderManager::cleanUpClassLoadersStart()
  
  MM_CollectorLanguageInterfaceJava::private_parallelGlobalGC_unlo
  adDeadClassLoaders ()
  
  MM_CollectorLanguageInterfaceJava::private_parallelGlobalGC_mast
  erThreadClassUnloading ()
  
  MM_CollectorLanguageInterfaceJava::parallelGlobalGC_postMarkProc
  essing ()
   MM_ParallelGlobalGC::masterThreadGarbageCollect ()
   MM_ConcurrentGC::internalGarbageCollect ()
   MM_Collector::garbageCollect ()
  .
  

Local fix

Problem summary

• The problem is caused when a class fails the class verification
  and the garbage collector tries to collect the class object.
  

Problem conclusion

• The JVM has been updated to prevent the crash from occurring so
  that the class object is not exposed to the garbage collector
  unless the class is fully initialized.
  .
  This APAR will be fixed in the following Java Releases:
   8 SR6 FP25 (8.0.6.25)
  .
  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:

Fix information

• Fixed component name

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R270 PSY

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