IBM Support

IT08444: MQCONNECTIONFACTORYFACTORY.GETOBJECTINSTANCE() FFSTS AND THROWS NPE IF PASSED UNREFERENCED OBJECT

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APAR status

  • Closed as program error.

Error description

  • When using the WebSphere MQ resource adapter inside WebSphere
    Liberty Profile, a NullPointerException originating within the
    internal
    method MQConnectionFactoryFactory.getObjectInstance() can occur
    when a JMS application performs a JNDI lookup.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    This issue affects users of:
    
    - The WebSphere MQ V7.1 classes for JMS.
    - The WebSphere MQ V7.5 classes for JMS.
    - The WebSphere MQ V8 classes for JMS.
    
    - The WebSphere MQ V7.1 resource adapter.
    - The WebSphere MQ V7.5 resource adapter.
    - The WebSphere MQ V8 resource adapter.
    
    that have applications which look up Connection Factory
    definitions from a Java Naming and Directory Interface (JNDI)
    repository.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    In order to support JNDI lookups, the WebSphere MQ classes for
    JMS provide an internal class called MQConnectionFactoryFactory,
    which implements the JNDI ObjectFactory interface. When an
    application performs a JNDI lookup, the JNDI repository will
    call the method
    MQConnectionFactoryFactory.getObjectInstance(Object, Name,
    Context, Hashtable).
    
    If an application performed a JNDI lookup, and the JNDI
    repository called
    MQConnectionFactoryFactory,getObjectInstance(Object, Name,
    Context, Hashtable) passing in an object that was not a
    ConnectionFactory, the WebSphere MQ classes for JMS attempted to
    generate an FFDC as it did not recognize the type of object it
    had been given. While generating the FFDC, a
    NullPointerException was generated. The NullPointerException was
    returned to the application.
    

Problem conclusion

  • The WebSphere MQ classes for JMS have been updated so that they
    no longer try and generate an FFDC if the internal method
    MQConnectionFactoryFactory,getObjectInstance(Object, Name,
    Context, Hashtable) is called by a JNDI repository for an object
    that is not a ConnectionFactory. Instead, the method will return
    null back to the JNDI respository, which is the defined
    behaviour as documented in the JNDI Specification.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v7.1       7.1.0.7
    v7.5       7.5.0.6
    v8.0       8.0.0.4
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT08444

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-04-21

  • Closed date

    2015-06-23

  • Last modified date

    2015-06-23

  • 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

    WMQ WINDOWS V7

  • Fixed component ID

    5724H7220

Applicable component levels

  • R710 PSY

       UP

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Document Information

Modified date:
09 March 2021