IZ81255: JPEGIMAGEDECODER.DECODEASBUFFEREDIMAGE() CAUSES TRACEASSERT ON P ARTICULAR IMAGES

APAR status

• Closed as program error.

Error description

• Error Message: The following error occurs on executing
  JPEGImageDecoder.decodeAsBufferedImage() on particular messages
  and particular scenarios.
  JVMDUMP006I Processing dump event "traceassert", detail "" -
  please wait.
  11:52:49.918 0x116ad1f00    j9vm.227    *   ** ASSERTION FAILED
  ** at vmaccess.c:271: ((vmThread)->publicFlags &
  J9_PUBLIC_FLAGS_VM_ACCESS)
  .
  Stack Trace: The native stack of the application thread will be
  as below
  (dbx) where
  coredump(??) at 0x9000000002a21bc
  j9dump_create() at 0x900000001860304
  doSystemDump() at 0x9000000019a7fe0
  protectedDumpFunction() at 0x9000000019ac4e0
  j9sig_protect() at 0x90000000184abb0
  runDumpFunction() at 0x9000000019ac484
  runDumpAgent() at 0x9000000019ac270
  triggerDumpAgents() at 0x9000000019c85d4
  twAssertion() at 0x9000000019ea948
  logTracePoint() at 0x9000000022b784c
  utsTraceV() at 0x9000000022b7a28
  j9Trace() at 0x9000000019ebd54
  internalReleaseVMAccessNoMutex() at 0x9000000017badb4
  internalReleaseVMAccess(), line 73 in "access.s"
  releasePrimitiveArrayCritical(), line 73 in "jnisup.s"
  jpegimagedecoderimpl.RELEASE_ARRAYS(env = 0x0900000002d53778,
  src = 0x0000000000001b20), line 186 in "jpegimagedecoderimpl.c"
  Java_sun_awt_image_codec_JPEGImageDecoderImpl_readJPEGStream(env
  = 0x00000000301bb300, javaDecoderObj = 0x000000011370f810,
  hInputStream = 0x000000011370f808, jpegParamObj = (nil), colCvt
  = '<HAT>01A'), line 1020 in "jpegimagedecoderimpl.c"
  VMprJavaSendNative(), line 73 in "jnisend.s"
  .
  

Local fix

Problem summary

• There are some JNI calls made in the critical section. This can
  illegally change the VM states causing the traceassert by the
  VM.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9
  .
  JVM code is corrected, avoiding this situation of execution of
  JNI calls in critical section.
  .
  To obtain the fix:
  Install build 20100903 or later
  

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

• R600 PSN

     UP