IZ74790: JAVA JIT LINUXPPC64 - INCORRECT GRAPHICAL OUTPUT

APAR status

• Closed as program error.

Error description

• Error Message: Character highlighting is not drawn correctly.
  .
  Stack Trace: N/A
  .
  The problem has shown up as incorrect graphical output, but this
  issue could be the cause of any problem where an invalid numeric
  value is being sent to a JNI routine via an 'int', 'short' or
  'byte' argument on LinuxPPC64 JVMs.
  

Local fix

• The problem can be avoided by using the following Java command
  line argument:
  -Xjit:disableDirectToJNI
  Using this option may have a slight impact on the Java
  applications performance as this option will prevent the JIT
  from optimizing the JNI call out path.
  

Problem summary

• The JIT failed to sign extend register passed arguments when
  calling JNI routines as is required by the LinuxPPC64 ABI.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9
  5.0.0 SR12
  .
  The JIT was modified so that it will sign extend values when
  calling JNI routines on LinuxPPC64.
  .
  To obtain the fix:
  Install build 20100511 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:

  IZ74804

Fix information

• Fixed component name

  JIT

• Fixed component ID

  620700124

Applicable component levels

• R600 PSN

     UP