PI47314: JAVACORE IN MERCMA64.DLL WHEN MULTI-THREADING AFTER APPLYING PATCHES FROM 8.4.1.2(50)

APAR status

• Closed as program error.

Error description

• When multi-threading a map using the Java API, the process may
  crash, and the following may be seen in the stack trace:
  
  mercma64!HandleCharacterRestrictions+0x443 [..makeitem.c @ 8613]
  mercma64!BuildCSText+0x14ac [makeitem.c @ 3034]
  mercma64!CopyOperandToOutput+0x1303 [makeitem.c @ 2346]
  mercma64!ExecuteMap+0x5215 [mapping.c @ 2565]
  mercma64!CallSubMap+0xe7e [function.c @ 5710]
  mercma64!FindOperand+0x2f92 [function.c @ 2562]
  mercma64!FindOperand+0x28cf [function.c @ 2453]
  mercma64!FindOperand+0x2910 [function.c @ 2458]
  mercma64!ExecuteMapRule+0x4b5 [mexecrul.c @ 564]
  mercma64!ExecuteMap+0x4ebe [mapping.c @ 2518]
  

Local fix

• WTXCQ - WTX00047149
  PB / PB
  No known workaround
  

Problem summary

• Users Affected:
  WebSphere Transformation Extender customers who use large
  exclude character restriction lists in 8.4.1 release
  
  
  Problem Description:
  
  WTX application abends in HandleCharacterRestrictions function.
  Example stack trace is:
  HandleCharacterRestrictions
  BuildCSText
  CopyOperandToOutput
  ExecuteMap
  CallSubMap
  FindOperand
  
  Platforms Affected:
  All
  

Problem conclusion

• The code in HandleCharacterRestrictions function was accessing
  memory that was not allocated resulting with the abend or a
  memory corruption with undefined behavior.
  
  Applies to:
  8.4.1.3
  
  Fixed in the next service packs and releases.
  
  To obtain the fix for this APAR:
  
  To see if the next service pack or product release is available,
  check the WebSphere Transformation Extender Downloads page:
  http://www.ibm.com/support/entry/portal/product/other_software/t
  ransformation_extender
  
  If the service pack or product release is available, download it
  from PassportAdvantage:
  http://www.ibm.com/software/howtobuy/passportadvantage/pao_custo
  mers.htm
  
  If the service pack or product release is not available and you
  require the APAR fix immediately, request a Limited Availability
  Interim Fix (LAIF) by opening a PMR:
  https://www.ibm.com/support/servicerequest/Home.action
  

Temporary fix

• EMEA-MULTI-WTX-8413-33-PMR19419,650,706-PI47314-core.zip
  

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

  WSTX

• Fixed component ID

  5724M4019

Applicable component levels

• R841 PSY

     UP