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 number
IJ30322
Reported component name
J9 COMMON CODE
Reported component ID
620700127
Reported release
270
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-01-14
Closed date
2021-01-14
Last modified date
2021-01-14
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
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Document Information
Modified date:
22 February 2022