IV04676: OOM MAY OCCUR WHEN AN XML PARSER IS REUSED TO PARSE DOCUMENTS CO NTAINING MOSTLY UNIQUE XML NAMES

APAR status

• Closed as program error.

Error description

• Error Message: java.lang.OutOfMemoryError
  .
  Stack Trace: N/A
  .
  A heapdump produced when this issue occurs will contain a large
  number of instances of org.apache.xerces.util.SymbolTable$Entry.
  

Local fix

• Create a new XML parser for each usage or cache XML parser
  instances with SoftReferences to allow the garbage collector to
  reclaim them if they grow too large.
  

Problem summary

• The XML parser's (default) internal symbol table can grow
  without bound which may lead to an OutOfMemoryError if the XML
  names it processes are mostly always unique.
  

Problem conclusion

• This defect will be fixed in:
  5.0.0 SR13
  .
  Provided an alternate parser configuration which uses a memory
  sensitive SymbolTable that can handle usage scenarios where the
  names in the XML documents being parsed are mostly unique. The
  internalized strings stored in this SymbolTable are softly
  reachable and may be cleared by the garbage collector in
  response to memory demand.  This fix can be enabled by setting
  the system property:
  -Dorg.apache.xerces.xni.parser.XMLParserConfiguration=org.apache
  .xerces.parsers.SoftReferenceSymbolTableConfiguration.
  .
  To obtain the fix:
  Install build 20110825 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 5 XML/XSL

• Fixed component ID

  620500126

Applicable component levels

• R500 PSY

     UP