JR47465: STACKOVERFLOW EXCEPTION WHEN FILTERING BY USER IN PROCESS INSPECTOR

Download Version 8.0.1 Fix Pack 2 for the IBM Business Process Manager products
Version 8.5.0 Fix Pack 1 for the IBM Business Process Manager products
Version 7.5.1 Fix Pack 2 for the IBM Business Process Manager products
Version 8.5 Refresh Pack 5 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• The StackOverFlowException occurs when filtering the
  search by user in process inspector. This is caused by having a
  large number of snapshots for the process app.
  
  number of data in user DB:
  ------------------------------------------------
  select * from twdb.lsw_snapshot  --   65536
  select * from twdb.LSW_Participant --   94
  select * from twdb.LSW_PARTICIPANT_GROUP  --  7441
  -------------------------------------------------
  
  Exception log:
  --------------------------------------------------------------
  [13/07/29 14:50:38:811 JST] 000019ce RequestProces E
  org.apache.wink.ser ver.internal.RequestProcessor handleRequest
  ????????
  [13/07/29 14:50:38:811 JST] 000019ce servlet       E
  com.ibm.ws.webcontainer.servlet.ServletWrapper service
  SRVE0014E:
  service() ??
  ??{?? RestAPIServlet ????????:
  javax.servlet.ServletException: java.lang.StackOverflowError
   at
  org.apache.wink.server.internal.RequestProcessor.handleRequest(R
  equestPr
  ocessor.java:195)
   at
  org.apache.wink.server.internal.servlet.RestServlet.service(Rest
  Servlet.
  java:124)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
  ......
          at
  com.ibm.bpm.wle.query.core.ValidationVisitor.visit(ValidationVis
  itor.jav
  a:271)
   at
  com.ibm.bpm.wle.query.parser.QTDelimitedString.jjtAccept(QTDelim
  itedStri
  ng.java:33)
   at
  com.ibm.bpm.wle.query.parser.SimpleNode.childrenAccept(SimpleNod
  e.java:9
  0)
   at
  com.ibm.bpm.wle.query.core.ValidationVisitor.visit(ValidationVis
  itor.jav
  a:298)
   at
  com.ibm.bpm.wle.query.parser.QTLiteral.jjtAccept(QTLiteral.java:
  33)
   at
  com.ibm.bpm.wle.query.parser.SimpleNode.childrenAccept(SimpleNod
  e.java:9
  0)
   at
  com.ibm.bpm.wle.query.core.ValidationVisitor.visit(ValidationVis
  itor.jav
  a:342)
   at
  com.ibm.bpm.wle.query.parser.QTValue.jjtAccept(QTValue.java:33)
  ----------------------------------------------------------------
  

Local fix

• No Workaround/IFix exists.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users filtering searches by 'Person' in     *
  *                  Process Inspector.                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: A StackOverflowException may occur      *
  *                      when filtering by 'Person'.             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When executing filtered searches in Process Inspector under
  the Process Admin console by 'Person', a user may encounter a
  StackOverflowException during runtime. The issue may be seen
  when a large number of participant groups(PG) are created for a
  process application. The error may be more apparent if there
  are a large number of snapshots created as each snapshot will
  contain a copy of the PGs.
  A similar error can be seen in the logs:
  com.ibm.ws.webcontainer.servlet.ServletWrapper service
  SRVE0014E:
  service() ??
  ??{?? RestAPIServlet ????????:
  javax.servlet.ServletException: java.lang.StackOverflowError
  at
  org.apache.wink.server.internal.RequestProcessor.handleRequest(R
  equestPr
  ocessor.java:195)
  at
  org.apache.wink.server.internal.servlet.RestServlet.service(Rest
  Servlet.
  java:124)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
  A temporary workaround for this situation would be to archive
  and delete old snapshots that are of no use. This would
  eliviate unneccessary looping through the old snapshots.
  

Problem conclusion

• Code changes have been made to resolve the
  StackOverflowException and properly return the correct
  results. An interim fix is available on v8.0.1.1. The fix will
  be integrated into the next fix pack.
  

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 ADVANCED

• Fixed component ID

  5725C9400

Applicable component levels

• R800 PSY

     UP