JR51826: YOU RECEIVE A JAVA.LANG.OUTOFMEMORY ERROR DURING SIMULATION

8.0.1.2-WS-BPM-IFJR51826
Version 8.5 Refresh Pack 6 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• A long-running simulation that has many instances and tokens
  waiting on a join gateway might fail with an
  java.lang.OutOfMemory error.
  
  PRODUCTS AFFECTED:
  IBM Business Process Manager (BPM) Advanced
  IBM BPM Standard
  IBM BPM Express
  

Local fix

Problem summary

• IBM Process Designer fails with a java.lang.OutOfMemory error
  when you run a simulation that has many tokens waiting on a join
  gateway. A heap dump analysis shows
  com/lombardisoftware/simulation/bpd/impl/worker/JoinImpl$1 as a
  memory-leak suspect. A new listener object was being created for
  each waiting token, which quickly exhausts the available heap
  space in certain scenarios.
  

Problem conclusion

• A fix is available for IBM BPM V8.0.1.2 that avoids creating a
  new listener object for each waiting token, thereby preventing
  the exhaustion of heap space and subsequent
  java.lang.OutOfMemory error.
  
  On Fix Central (http://www.ibm.com/support/fixcentral), search
  for JR51826:
  
      1. Select IBM Business Process Manager with your edition
  from the product selector, the installed version to the fix pack
  level, and your platform, and then click Continue.
      2. Select APAR or SPR, enter JR51826, and click Continue.
  
  When you download fix packages, ensure that you also download
  the readme file for each fix. Review each readme file for
  additional installation instructions and information about the
  fix.
  

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

  BPM STANDARD

• Fixed component ID

  5725C9500

Applicable component levels

• R801 PSY

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