IJ35428: CRASH OR CLASSCIRCULARITYERROR DURING CLASS LOADING

APAR status

• Closed as program error.

Error description

• Error Message: VM occasionally crashes or throws
  ClassCircularityError when loading classes.
  .
  Stack Trace: #13 0x00007f2a3e2997d2 in compareRomClassName
  (item=<optimized out>, currentElement=0x7f2a380d2d10)
      at
  /home/jenkins/workspace/Build_JDK17_x86-64_linux_Personal/openj9
  /runtime/vm/createramclass.cpp:1483
  #14 0x00007f2a3e29af63 in verifyLoadingOrLinkingStack
  (vmThread=vmThread@entry=0x7c9f00,
  classLoader=classLoader@entry=0x7f29f862ea88,
      clazz=clazz@entry=0x7f29f86f5dd0,
  stack=stack@entry=0x7ca138,
      comparator=comparator@entry=0x7f2a3e2997b0
  <compareRomClassName(void*, J9StackElement*)>, maxStack=0,
  stackpool=0x7f2a380d28d0,
      throwException=1, ownsClassTableMutex=1)
      at
  /home/jenkins/workspace/Build_JDK17_x86-64_linux_Personal/openj9
  /runtime/vm/createramclass.cpp:1522
  #15 0x00007f2a3e29fd0f in verifyClassLoadingStack
  (romClass=0x7f29f86f5dd0, classLoader=0x7f29f862ea88,
  vmThread=0x7c9f00)
      at
  /home/jenkins/workspace/Build_JDK17_x86-64_linux_Personal/openj9
  /runtime/vm/createramclass.cpp:1506
  .
  

Local fix

Problem summary

• The VM was corrupting internal structures in some class loading
  failure paths.
  

Problem conclusion

• The VM has been updated to ensure consistency of the internal
  structures.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR7       (8.0.7.0)
  .
  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

     UP