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PH26842: SAML WEB SSO CLASSNOTFOUNDEXCEPTION FOR TRUSTASSOCIATIONUTIL IN 9.0.5.4

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APAR status

  • Closed as program error.

Error description

  • When running WebSphere Application Server fixpack 9.0.5.4,
    when a URL is invoked that is protected by the SAML Web SSO
    TAI, during the processing of the request a classloader error
    occurs.
    
    java.lang.NoClassDefFoundError:
    com.ibm.ws.security.web.TrustAssociationUtil
    at com.ibm.ws.secu
    rity.web.saml.util.SAMLTaiState.saveReqURL(SAMLTaiState.java:289
    )
    at com.ibm.ws.security.web.saml.ACSTrustAssociationIntercepto
    r.invokeTAIafterSSO(ACSTrustAssociationInterceptor.java:663)
    ...
    
    Caused by: java.lang.ClassNotFoundException:
    com.ibm.ws.security.web.TrustAssociationUtil cannot be found by
    com.ibm.wsfp.main_8.5.5
    at
    org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(
    BundleLoader.java:501)
    ...
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server and SAML Web SSO                     *
    ****************************************************************
    * PROBLEM DESCRIPTION: A ClassNotFoundException error          *
    *                      occurs for TrustAssociationUtil in      *
    *                      SAML Web SSO on fixpack 9.0.5.4.        *
    ****************************************************************
    * RECOMMENDATION:  Install a fix pack or interim fix that      *
    *                  includes this APAR. An interim fix for      *
    *                  9.0.5.4 is available to download at         *
    *                  https://www.ibm.com/support/pages/node/6242 *
    *                  376 .                                       *
    ****************************************************************
    After upgrading to 9.0.5.4, the SAML Web SSO trust association
    interceptor (TAI) will no longer function.  The TAI will emit
    the following error:
    java.lang.NoClassDefFoundError:
    com.ibm.ws.security.web.TrustAssociationUtil
    at com.ibm.ws.secu
    rity.web.saml.util.SAMLTaiState.saveReqURL(SAMLTaiState.java:28
    9
    )
    at com.ibm.ws.security.web.saml.ACSTrustAssociationIntercepto
    r.invokeTAIafterSSO(ACSTrustAssociationInterceptor.java:663)
    ...
    Caused by: java.lang.ClassNotFoundException:
    com.ibm.ws.security.web.TrustAssociationUtil cannot be found by
    com.ibm.wsfp.main_8.5.5
    

Problem conclusion

  • The com.ibm.ws.security.web package is added to the imports
    list in the MANIFEST.MF file in the
    com.ibm.wsfp.main.jar file, preventing the
    ClassNotFoundException error for the
    com.ibm.ws.security.web.TrustAssociationUtil class.
    
    The fix for this APAR is targeted for inclusion in fix pack
    9.0.5.5
    For more information, see 'Recommended Updates for
    WebSphere Application Server':
    https://www.ibm.com/support/pages/node/715553
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH26842

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-06-25

  • Closed date

    2020-06-30

  • Last modified date

    2020-07-21

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R900 PSY

       UP

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

Document Information

Modified date:
26 August 2021