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JR50907: SCA APPLICATION FAILS TO START.

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APAR status

  • Closed as program error.

Error description

  • You might not be able to start your SCA application because of
    a NullPointerException such as the following:
    
    Caused by: java.lang.NullPointerException
    at
    java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.ja
    va:220)   at
    java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.jav
    a:833)      at
    com.ibm.ws.sca.internal.managed.WASClassLoaderNormalizer.normali
    ze(WASClassLoaderNormalizer.java:51)        at
    com.ibm.ws.sca.resources.loader.ClassLoaderRegistry.normalize(Cl
    assLoaderRegistry.java:244)                 at
    com.ibm.ws.sca.resources.loader.ClassLoaderRegistry.lookup(Class
    LoaderRegistry.java:227)                     at
    com.ibm.ws.sca.resources.loader.ClassLoaderRegistry.lookup(Class
    LoaderRegistry.java:98)                      at
    com.ibm.ws.sca.resources.loader.ResourceAccessor$ResourceRegistr
    y.lookup(ResourceAccessor.java:456)          at
    com.ibm.ws.sca.resources.loader.ResourceAccessor$ResourceRegistr
    y.access$100(ResourceAccessor.java:433)      at
    com.ibm.ws.sca.resources.loader.ResourceAccessor.getLocalResourc
    es(ResourceAccessor.java:297)                at
    com.ibm.ws.sca.resources.loader.ResourceAccessor.getLocalResourc
    es(ResourceAccessor.java:285)                at
    com.ibm.ws.sca.resources.discovery.impl.ModuleDiscovererImpl.dis
    cover(ModuleDiscovererImpl.java:149)         at
    com.ibm.ws.sca.resources.discovery.impl.ModuleDiscovererImpl.get
    Modules(ModuleDiscovererImpl.java:74)        at
    com.ibm.ws.sca.internal.container.impl.ContainerImpl.start(Conta
    inerImpl.java:994)   at
    com.ibm.ws.sca.internal.container.impl.ContainerImpl.start(Conta
    inerImpl.java:601)
    
    If the error occurs,  a server restart is required to correct
    the issue. The error occurs because the SCA class loader cache
    was freed by the java garbage collector, resulting in a
    NullPointerException.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM Business Process Manager (BPM)          *
    *                  Advanced                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: You might not be able to start your     *
    *                      SCA application because of a            *
    *                      NullPointerException such as the        *
    *                      following: Caused by:                   *
    *                      java.lang.NullPointerException          *
    *                      at                                      *
    *                      java.util.concurrent.ConcurrentHashMap. *
    *                      hash(ConcurrentHashMap.java:220) at     *
    *                      java.util.concurrent.ConcurrentHashMap. *
    *                      get(ConcurrentHashMap.java:833)  at     *
    *                      com.ibm.ws.sca.internal.managed.WASClas *
    *                      sLoaderNormalizer.normali               *
    *                      ze(WASClassLoaderNormalizer.java:51)at  *
    *                      com.ibm.ws.sca.resources.loader.ClassLo *
    *                      aderRegistry.normalize(Cl               *
    *                      assLoaderRegistry.java:244)  at         *
    *                      com.ibm.ws.sca.resources.loader.ClassLo *
    *                      aderRegistry.lookup(Class               *
    *                      LoaderRegistry.java:227) at             *
    *                      com.ibm.ws.sca.resources.loader.ClassLo *
    *                      aderRegistry.lookup(ClassLoaderRegistry *
    *                      .java:98)     at                        *
    *                      com.ibm.ws.sca.resources.loader.Resourc *
    *                      eAccessor$ResourceRegistry.lookup(Resou *
    *                      rceAccessor.java:456) at                *
    *                      com.ibm.ws.sca.resources.loader.Resourc *
    *                      eAccessor$ResourceRegistry.access$100(R *
    *                      esourceAccessor.java:433) at            *
    *                      com.ibm.ws.sca.resources.loader.Resourc *
    *                      eAccessor.getLocalResources(ResourceAcc *
    *                      essor.java:297) at                      *
    *                      com.ibm.ws.sca.resources.loader.Resourc *
    *                      eAccessor.getLocalResources(ResourceAcc *
    *                      essor.java:285) at                      *
    *                      com.ibm.ws.sca.resources.discovery.impl *
    *                      .ModuleDiscovererImpl.discover(ModuleDi *
    *                      scovererImpl.java:149) at               *
    *                      com.ibm.ws.sca.resources.discovery.impl *
    *                      .ModuleDiscovererImpl.getModules(Module *
    *                      DiscovererImpl.java:74) at              *
    *                      com.ibm.ws.sca.internal.container.impl. *
    *                      ContainerImpl.start(ContainerImpl.java: *
    *                      994) at                                 *
    *                      com.ibm.ws.sca.internal.container.impl. *
    *                      ContainerImpl.start(ContainerImpl.java: *
    *                      601)                                    *
    *                      If the error occurs,  a server          *
    *                      restart is required to correct          *
    *                      the issue. The error occurs because     *
    *                      the SCA class loader cache              *
    *                      was freed by the java garbage           *
    *                      collector, resulting in a               *
    *                      NullPointerException.                   *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When you stop the SCA applications and then restart them, you
    might occasionally encounter this NullPointerException issue.
    The code fix resolves  the issue by finding a correct class
    loader and rebuilding the cache again if the current class
    loader from cache is null.
    

Problem conclusion

  • A fix is available for IBM Business Process Manager V8.0.1.2.
    With the applied fix, the system will find the right class
    loader for the stopped applications, thereby avoiding the
    NullPointerException
    
    
    On Fix Central (http://www.ibm.com/support/fixcentral), search
    for JR50907:
       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 JR50907, 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 number

    JR50907

  • Reported component name

    BPM ADVANCED

  • Reported component ID

    5725C9400

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2014-07-30

  • Closed date

    2014-10-23

  • Last modified date

    2015-06-30

  • 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

[{"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":"8.0","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
30 June 2015