PM65205: Negative hashcode resulted in bad array index

APAR status

• Closed as program error.

Error description

• A hazard existed in one of our internal hashtables if a
  hashcode ever had its high bit set (possible negative array
  index).
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All IBM WebSphere Application Server        *
  *                  Feature                                     *
  *                  Pack for XML users                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: Negative/out-of-bounds array index      *
  *                      reported during processing of XSLT,     *
  *                      XPath, or XQuery                        *
  ****************************************************************
  * RECOMMENDATION:  Apply fix.                                  *
  ****************************************************************
  A hazard existed in one of our internal hashtables if a
  hashcode ever had its high bit set. This situation has not
  occurred in the past, but the hazard was exposed when the
  improved hashing algorith was introduced in Java as described
  in
  http://docs.oracle.com/javase/7/docs/api/java/util/HashMap.html.
  

Problem conclusion

• The code has been corrected to handle this possibility.
  The fix for this APAR is currently targeted for inclusion in
  the Websphere Application Server XML Feature V1.0.0.13. Please
  refer to  the  Recommended Updates page for delivery
  information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

• If this problem does arise (unlikely), regressing WebSphere
  Application Server and/or the IBM XML code to an earlier
  version may be an acceptable temporary workaround.
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  PM65208 PM65650

Fix information

• Fixed component name

  XML FEATUREPACK

• Fixed component ID

  5724J0856

Applicable component levels

• R700 PSY

     UP