IV62236: NATIVE MEMORY LEAK WITH RUNTIME.EXEC AFTER APPLYING APAR IV65817

APAR status

• Closed as program error.

Error description

• Error Message: While running a java process that periodically
  runs non-java processes a memory leak is observed. Running with
  -Xcheck:jni shows:JVMJNCK071W JNI warning: Memory at 0xE3972370
  acquired by GetByteArrayElements was not released before
  returning from native. This is probably a memory
  leak.JVMJNCK078W Warning detected in
  java/lang/UNIXProcess.forkAndExec
  .
  Stack Trace: N/A
  .
  

Local fix

Problem summary

• This leakage was introduced by the Oracle bug 5049299 as it
  allocate a new memory  using GetByteArrayElements but not
  releasing it using ReleaseByteArrayElements.
  

Problem conclusion

• The JDK has been updated to include the release of the memory
  using ReleaseByteArrayElements.
  .
  This APAR will be fixed in the following Java Releases:
     7    SR8       (7.0.8.0)
     7 R1 SR2       (7.1.2.0)
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, Java maintenance is available
  from:
             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

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R700 PSY

     UP