IV07317: MEMORY LEAK ON Z/OS IN THE JVMS ASCII TO EBCDIC USAGE OF J9SYSIN FO_GET_USERNAME()

APAR status

• Closed as program error.

Error description

• Error Message: On z/OS, function calls to get user name and
  password made through the JVM have a memory leak.  The memory
  leaks are typically on the order of tens of bytes each.
  .
  Stack Trace: N/A
  .
  To verify the memory leaks, the LE run-time option HEAPCHK can
  be used to determine the stacks responsible for the leaked
  string buffers.
      The call to j9sysinfo_get_username() will be in the stack
  traces.
  

Local fix

Problem summary

• On z/OS, the method j9sysinfo_get_username() allocates temporary
  memory but never frees it.
  

Problem conclusion

• This defect will be fixed in:
  5.0.0 SR13
  6.0.0 SR10
  6.0.1 SR1
  .
     The JVM has been updated so that the temporary memory
  introduced by method j9sysinfo_get_username() is freed properly.
  .
  To obtain the fix:
  Install build 20110902 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:

  IV07321

Fix information

• Fixed component name

  JAVA 5 J9 COMMO

• Fixed component ID

  620500127

Applicable component levels

• R500 PSY

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