IBM Support

PM91124: CLASSLOADER LEAK WHEN JAVA SERVER FACES DOES NOT CALL SHUTDOWN() WHEN AN EXCEPTION IS THROWN

Fixes are available

8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
8.5.5.2: WebSphere Application Server V8.5.5 Fix Pack 2
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14

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APAR status

  • Closed as program error.

Error description

  • A classloader leak can occur when starting and stopping a
    JavaServer Faces (JSF) SunRI application.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server version    *
    *                  7.0, 8.0 and 8.5.5 users of JavaServer      *
    *                  Faces (JSF) SunRI.                          *
    ****************************************************************
    * PROBLEM DESCRIPTION: A classloader leak can occur when an    *
    *                      exception is thrown during the          *
    *                      initialization of a JSF SunRI           *
    *                      application.                            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    If an exception occurs during the initialization of an
    application configured to use the SunRI JSF implementation, a
    classloader leak can occur because a ThreadPoolExcecutor
    object fails to have its shutdown method called.
    An example of an exception which could lead to a classloader
    leak is:
    --------------
    webapp E com.ibm.ws.webcontainer.webapp.WebApp
    notifyServletContextCreated
    SRVE0283E: Exception caught while initializing context: {0}
    java.lang.ExceptionInInitializerError
    at java.lang.J9VMInternals.initialize(J9VMInternals.java:222)
    at
    com.sun.faces.config.ConfigManager.getConfigDocuments(ConfigMana
    ger.java:276)
    at
    com.sun.faces.config.ConfigManager.initialize(ConfigManager.java
    :202)
    ....
    Caused by: java.lang.ClassCastException:
    org.apache.xerces.jaxp.validation.XMLSchemaFactory
    incompatible with javax.xml.validation.SchemaFactory
    at javax.xml.validation.SchemaFactory.newInstance(Unknown
    Source)
    at
    com.sun.faces.config.DbfFactory.initSchema(DbfFactory.java:149)
    --------------
    When the application is stopped the classloader remains
    because the ThreadPoolExecutor object was not released.
    

Problem conclusion

  • The SunRI JSF code was modified to ensure the shutdown method
    is called during the application initialization.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 7.0.0.31, 8.0.0.8, and 8.5.5.2.  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

    PM91124

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-06-14

  • Closed date

    2013-08-21

  • Last modified date

    2013-08-21

  • 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

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 7.0

Reference #: PM91124

Modified date: 21 August 2013