IBM Support

PI69642: NullPointerException deleting stateful EJB

Fixes are available

9.0.0.2: WebSphere Application Server traditional V9.0 Fix Pack 2
16.0.0.4: WebSphere Application Server Liberty 16.0.0.4
9.0.0.3: WebSphere Application Server traditional V9.0 Fix Pack 3
9.0.0.4: WebSphere Application Server traditional V9.0 Fix Pack 4
9.0.0.5: WebSphere Application Server traditional V9.0 Fix Pack 5
9.0.0.6: WebSphere Application Server traditional V9.0 Fix Pack 6
9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
17.0.0.1: WebSphere Application Server Liberty 17.0.0.1
17.0.0.2: WebSphere Application Server Liberty 17.0.0.2
17.0.0.3: WebSphere Application Server Liberty 17.0.0.3
17.0.0.4: WebSphere Application Server Liberty 17.0.0.4
18.0.0.1: WebSphere Application Server Liberty 18.0.0.1
18.0.0.2: WebSphere Application Server Liberty 18.0.0.2
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
18.0.0.3: WebSphere Application Server Liberty 18.0.0.3
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
18.0.0.4: WebSphere Application Server Liberty 18.0.0.4
19.0.0.1: WebSphere Application Server Liberty 19.0.0.1
19.0.0.2: WebSphere Application Server Liberty 19.0.0.2
19.0.0.3: WebSphere Application Server Liberty 19.0.0.3
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
19.0.0.4: WebSphere Application Server Liberty 19.0.0.4
19.0.0.5: WebSphere Application Server Liberty 19.0.0.5
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
19.0.0.6: WebSphere Application Server Liberty 19.0.0.6
19.0.0.7: WebSphere Application Server Liberty 19.0.0.7
19.0.0.8: WebSphere Application Server Liberty 19.0.0.8
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
19.0.0.9: WebSphere Application Server Liberty 19.0.0.9
19.0.0.10: WebSphere Application Server Liberty 19.0.0.10
19.0.0.11: WebSphere Application Server Liberty 19.0.0.11
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
19.0.0.12: WebSphere Application Server Liberty 19.0.0.12
20.0.0.1: WebSphere Application Server Liberty 20.0.0.1
20.0.0.2: WebSphere Application Server Liberty 20.0.0.2
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
20.0.0.3: WebSphere Application Server Liberty 20.0.0.3
20.0.0.4: WebSphere Application Server Liberty 20.0.0.4
20.0.0.5: WebSphere Application Server Liberty 20.0.0.5
20.0.0.6: WebSphere Application Server Liberty 20.0.0.6
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
20.0.0.7: WebSphere Application Server Liberty 20.0.0.7
20.0.0.8: WebSphere Application Server Liberty 20.0.0.8
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
20.0.0.9: WebSphere Application Server Liberty 20.0.0.9
20.0.0.10: WebSphere Application Server Liberty 20.0.0.10
20.0.0.11: WebSphere Application Server Liberty 20.0.0.11
20.0.0.12: WebSphere Application Server Liberty 20.0.0.12
9.0.5.6: WebSphere Application Server traditional Version 9.0.5 Fix Pack 6

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The following NullPointerException may occur when stateful
    beans time out and are evicted from the EJB cache:
    
    E   CWOWB2001E: A PRE_DESTROY lifecycle inteceptor threw an
    exception: java.lang.NullPointerException
    at
    com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.invokeInter
    cept
    ors(EJBCDIInterceptorWrapper.java:131)
    at
    com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.preDestroy(
    EJBC
    DIInterceptorWrapper.java:82)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
    Method)
    at
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce
    ssor
    Impl.java:95)
    at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe
    thod
    AccessorImpl.java:55)
    at java.lang.reflect.Method.invoke(Method.java:508)
    at
    com.ibm.ejs.container.interceptors.InterceptorProxy.invokeIn
    terc
    eptor(InterceptorProxy.java:201)
    at
    com.ibm.ejs.container.interceptors.InvocationContextImpl.pro
    ceed
    (InvocationContextImpl.java:632)
    at
    com.ibm.ejs.container.interceptors.InvocationContextImpl.doL
    ifeC
    ycle(InvocationContextImpl.java:336)
    at
    com.ibm.ejs.container.StatefulBeanO.destroy(StatefulBeanO.ja
    va:5
    05)
    at
    com.ibm.ejs.container.activator.StatefulSessionActivationStr
    ateg
    y.atDiscard(StatefulSessionActivationStrategy.java:657)
    at
    com.ibm.ejs.container.activator.Activator.discardObject(Acti
    vato
    r.java:528)
    at
    com.ibm.ejs.util.cache.Cache.evictObject(Cache.java:1123)
    at
    com.ibm.ejs.util.cache.BackgroundLruEvictionStrategy.sweep(B
    ackg
    roundLruEvictionStrategy.java:588)
    at
    com.ibm.ejs.util.cache.BackgroundLruEvictionStrategy.run(Bac
    kgro
    undLruEvictionStrategy.java:486)
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server with EJB applications containing     *
    *                  stateful beans                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: A NullPointerException may occur when   *
    *                      stateful beans time out and are         *
    *                      evicted from the EJB cache.             *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The following NullPointerException may occur when stateful
    beans time out and are evicted from the EJB cache:
    E   CWOWB2001E: A PRE_DESTROY lifecycle inteceptor threw an
    exception: java.lang.NullPointerException
    at
    com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.invokeIntercept
    ors(EJBCDIInterceptorWrapper.java:131)
    at
    com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.preDestroy(EJBC
    DIInterceptorWrapper.java:82)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
    Method)
    at
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessor
    Impl.java:95)
    at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod
    AccessorImpl.java:55)
    at java.lang.reflect.Method.invoke(Method.java:508)
    at
    com.ibm.ejs.container.interceptors.InterceptorProxy.invokeInterc
    eptor(InterceptorProxy.java:201)
    at
    com.ibm.ejs.container.interceptors.InvocationContextImpl.proceed
    (InvocationContextImpl.java:632)
    at
    com.ibm.ejs.container.interceptors.InvocationContextImpl.doLifeC
    ycle(InvocationContextImpl.java:336)
    at
    com.ibm.ejs.container.StatefulBeanO.destroy(StatefulBeanO.java:5
    05)
    at
    com.ibm.ejs.container.activator.StatefulSessionActivationStrateg
    y.atDiscard(StatefulSessionActivationStrategy.java:657)
    at
    com.ibm.ejs.container.activator.Activator.discardObject(Activato
    r.java:528)
    at
    com.ibm.ejs.util.cache.Cache.evictObject(Cache.java:1123)
    at
    com.ibm.ejs.util.cache.BackgroundLruEvictionStrategy.sweep(Backg
    roundLruEvictionStrategy.java:588)
    at
    com.ibm.ejs.util.cache.BackgroundLruEvictionStrategy.run(Backgro
    undLruEvictionStrategy.java:486)
    

Problem conclusion

  • The EJB container has been updated to properly establish the
    EJBContext on the thread prior to calling the stateful bean
    pre-destroy lifecycle callback method. This change allows CDI
    to properly access the EJBContext and avoids the
    NullpointerException.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 9.0.0.2 for WebSphere Application Server and 16.0.0.4
    for WebSphere Application Server Liberty.  Please refer to the
    Recommended Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI69642

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-09-23

  • Closed date

    2016-10-06

  • Last modified date

    2016-10-11

  • 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

    WEBSPHERE APP S

  • Fixed component ID

    5724J0800

Applicable component levels

  • R900 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"900","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
19 October 2021