IBM Support

PI93972: CLASSLOADER ISSUES IN JSFEXTENSIONFACTORY CAN CAUSE NPE

Fixes are available

18.0.0.2: WebSphere Application Server Liberty 18.0.0.2
18.0.0.3: WebSphere Application Server Liberty 18.0.0.3
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
19.0.0.4: WebSphere Application Server Liberty 19.0.0.4
19.0.0.5: WebSphere Application Server Liberty 19.0.0.5
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
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
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
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
20.0.0.7: WebSphere Application Server Liberty 20.0.0.7
20.0.0.8: WebSphere Application Server Liberty 20.0.0.8
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
21.0.0.3: WebSphere Application Server Liberty 21.0.0.3
21.0.0.4: WebSphere Application Server Liberty 21.0.0.4
21.0.0.5: WebSphere Application Server Liberty 21.0.0.5
21.0.0.6: WebSphere Application Server Liberty 21.0.0.6
21.0.0.7: WebSphere Application Server Liberty 21.0.0.7
21.0.0.8: WebSphere Application Server Liberty 21.0.0.8
21.0.0.9: WebSphere Application Server Liberty 21.0.0.9

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APAR status

  • Closed as program error.

Error description

  • Issues with JSFExtensionFactory.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server Liberty - JavaServer Faces (JSF)     *
    *                  MyFaces 2.0 and MyFaces 2.2                 *
    ****************************************************************
    * PROBLEM DESCRIPTION: java.lang.NullPointerException from     *
    *                      JSFExtensionFactory.initFaces           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During the startup of the JVM, different classloaders are
    sometimes used by JSF.  If the thread context classloader is
    incorrectly used, then JSF does not actually get the default
    resource, leading to the following NullPointerException:
    
    SRVE0280E: Extension processor failed to initialize in factory
    [com.ibm.ws.jsf.extprocessor.JSFExtensionFactory@89d3c57d]:
    java.lang.NullPointerException
      at
    com.ibm.ws.jsf.extprocessor.JSFExtensionFactory.initFaces(JSFExt
    ensionFactory.java:217)
      at
    com.ibm.ws.jsf.extprocessor.JSFExtensionFactory.createExtensionP
    rocessor(JSFExtensionFactory.java:186)
      at
    com.ibm.ws.webcontainer.webapp.WebApp.initializeExtensionProcess
    ors(WebApp.java:2043)
      at
    com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish
    (WebApp.java:1075)
      at
    com.ibm.ws.webcontainer.webapp.WebApp.initialize(WebApp.java:100
    0)
    

Problem conclusion

  • The JSF MyFaces code was updated to use the correct classloader,
    which prevents the NullPointerException.
    
    The fix for this APAR is currently targeted for inclusion in fix
    pack WebSphere Liberty 18.0.0.2.  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

    PI93972

  • Reported component name

    LIBERTY PROFILE

  • Reported component ID

    5724J0814

  • Reported release

    CD0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-02-19

  • Closed date

    2018-03-14

  • Last modified date

    2018-03-14

  • 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

    LIBERTY PROFILE

  • Fixed component ID

    5724J0814

Applicable component levels

  • RCD0 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"CD0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
24 November 2021