PK14874: MEMORY LEAK CAUSED BY DELETEONEXIT CALL

APAR status

• Closed as program error.

Error description

• Native Memory exhaustion (not java heap OutofMemory) which
  arises due to the use of the java/lang/File.deleteOnExit()
  This API registers files for deletion on exit by adding
  a structure (struct dlEntry) to a linked list. List
  will grow indefinitely if files are continually registered
  with deleteOnExit().
  

Local fix

Problem summary

• Native Memory exhaustion (not java heap OutofMemory) which
  arises due to the use of the java/lang/File.deleteOnExit().
  

Problem conclusion

• This API registers files for deletion on exit by adding
  a structure (struct dlEntry) to a linked list. List will
  grow indefinitely if files are continually registered
  with deleteOnExit().
  This problem  cannot be totally avoided, without breaking
  the API or radically changing it. However, the memory leak
  can be radically reduced in magnitude by amending the
  structure definition to using the convenction for variable
  length arrays in structures.
  This allows structures to take no more space than they
  actually need.
  .
  To obtain the fix:
  Install build 20060605 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(1.3/1.4 CO

• Fixed component ID

  5648C9800

Applicable component levels

• R31A PSN

     UP

• R31L PSN

     UP

• R31O PSN

     UP

• R31W PSN

     UP