IBM Support

JR48788: NULLPOINTEREXCEPTION WHEN MIGRATING A PROCESS INSTANCE RUNNING A GENERALIZED FLOW

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When a process instance that is currently navigating a
    single-threaded
    region in a generalized flow, it can happen that
    the migration aborts with the following root cause:
    
                 java.lang.NullPointerException
     at
    com.ibm.bpe.engine.migration.MigrationHandler.addSingleMessage(M
    igration
    Handler.java:794)
     at
    com.ibm.bpe.engine.migration.MigrationHandler.determineNavigatio
    nFront(M
    igrationHandler.java:427)
     at
    com.ibm.bpe.engine.migration.MigrationHandler.migrate(MigrationH
    andler.j
    ava:197)
     at
    com.ibm.bpe.engine.BpelEngineCore.migrate(BpelEngineCore.java:10
    430)
     at com.ibm.bpe.engine.BpelEngine.migrate(BpelEngine.java:8625)
     at
    com.ibm.bpe.framework.BusinessProcessServiceImpl.migrate(Busines
    sProcess
    ServiceImpl.java:27236)
    
    
    Normally, during navigation of a process, it is required that
    all
    activity instances of the so called navigation front are
    persisted to
    the database.
    The navigation front is the set of activities that have been
    navigated
    at last inside a navigation transaction.
    In some situation it happens that an activity instance that
    belongs to
    the navigation front is not persisted. The activity instance is
    not
    found
    during instance migration and as a result a NullPointerException
    is
    thrown.
    

Local fix

  • n/a
    

Problem summary

  • NullPointerException when migrating a process instance running a
    generalized flow.
    
    PROBLEM DETAILED DESCRIPTION:
    When a process instance, that is currently navigating a
    single-threaded region in a generalized flow, is migrated, it
    can happen that the migration aborts with the following root
    cause:
    
           java.lang.NullPointerException
     at com.ibm.bpe.engine.migration.MigrationHandler.
       addSingleMessage(MigrationHandler.java:794)
     at com.ibm.bpe.engine.migration.MigrationHandler.
       determineNavigationFront(MigrationHandler.java:427)
     at com.ibm.bpe.engine.migration.MigrationHandler.
       migrate(MigrationHandler.java:197)
     at com.ibm.bpe.engine.BpelEngineCore.migrate
       (BpelEngineCore.java:10430)
     at com.ibm.bpe.engine.BpelEngine.migrate
       (BpelEngine.java:8625)
     at com.ibm.bpe.framework.BusinessProcessServiceImpl.
       migrate(BusinessProcessServiceImpl.java:27236)
    
    Normally, during navigation of a process, it is required that
    all activity instances of the so called navigation front are
    persisted to the database.  The navigation front is the set of
    activities that have been navigated at last inside a navigation
    transaction.
    In some situation it happens that an activity instance that
    belongs to the navigation front is not persisted. The activity
    instance is not found during instance migration and as a result
    a NullPointerException is thrown.
    

Problem conclusion

  • With this fix it is ensured that also activity instances inside
    generalized flows, that make up the navigation front are
    persisted to the database.
    It is important to understand that this fix need already be
    installed before the migration takes place.  Although the
    exception happens at migration time, the cause of this issue is
    fixed in the normal navigation of processes.
    
    FIX AVAILABILITY:
    Fix is targetted for inclusion in next fixpack for BPM V7.5.1,
    BPM 8.0.1
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR48788

  • Reported component name

    WEB PROC SERVER

  • Reported component ID

    5724L0100

  • Reported release

    751

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-12-11

  • Closed date

    2014-02-12

  • Last modified date

    2014-02-12

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

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

    IV53217

Fix information

  • Fixed component name

    BPM ADVANCED

  • Fixed component ID

    5725C9400

Applicable component levels

  • R751 PSN

       UP

  • R801 PSN

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFTN5","label":"IBM Business Process Manager Advanced"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.5.1","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
12 February 2014