IBM Support

PI10924: The JAXB Unmarshaller may throw a RuntimeException in the code generation process when handling a XMLJavaTypeAdapter.

Fixes are available

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
7.0.0.35: 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

  • While processing an XML document, the IBM JAXB Unmarshaller
    improperly handles XMLJavaTypeAdapter annotations causing a
    possible exception to occur during the code generation process
    at runtime.
    
    Sample stack trace:
    
    java.lang.RuntimeException: FCG BCEL
    feature is unimplemented
    at
    com.ibm.fcg.impl.FinalCodeGenerator.unimplementedException(Unk
    nown Source)
    at com.ibm.fcg.impl.FinalCodeGenerator.genCode_coerce(Unknown
    Source)
    at com.ibm.fcg.impl.FinalCodeGenerator.convertExpr(Unknown
    Source)
    atcom.ibm.xml.xlxp2.jaxb.unmarshal.codegen.fcg.TypedPropert
    yGenerator.generate(TypedPropertyGenerator.java:188)
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server V7.0, V8.0, and V8.5                 *
    ****************************************************************
    * PROBLEM DESCRIPTION: The JAXB Unmarshaller may throw a       *
    *                      RuntimeException in the code            *
    *                      generation process when handling a      *
    *                      XMLJavaTypeAdapter.                     *
    ****************************************************************
    * RECOMMENDATION:  Install a fix pack that contains this       *
    *                  APAR.                                       *
    ****************************************************************
    While processing an XML document, the IBM JAXB Unmarshaller
    improperly handles XMLJavaTypeAdapter annotations causing a
    possible exception to occur during the code generation process
    at runtime.
    Sample stack trace:
    java.lang.RuntimeException: FCG BCEL
    feature is unimplemented
    at
    com.ibm.fcg.impl.FinalCodeGenerator.unimplementedException(Unk
    nown Source)
    at com.ibm.fcg.impl.FinalCodeGenerator.genCode_coerce(Unknown
    Source)
    at com.ibm.fcg.impl.FinalCodeGenerator.convertExpr(Unknown
    Source)
    atcom.ibm.xml.xlxp2.jaxb.unmarshal.codegen.fcg.TypedPropert
    yGenerator.generate(TypedPropertyGenerator.java:188)
    

Problem conclusion

  • The JAXB Unmarshaller does some code generation at runtime to
    help improve performance. The issue appeared to be in the code
    generator and how it handles XmlJavaTypeAdapter annotations.
    Through the handling of these type adapters, there was the
    possibility of an improper cast from one type to another. This
    is where the root cause of the exception was.
    
    The issue was fixed by ensuring that when dealing with an
    XMLJavaTypeAdapter, the code generator is aware that
    processing has already occurred via the type adapter, and
    therefore there is no need for any unnecessary processing
    which may conflict with the work performed by the type adapter.
    
    The fix for this APAR is currently targeted for inclusion in
    Fix Packs 7.0.0.33, 8.0.0.9, and 8.5.5.3.  Please refer to the
    Recommended Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    
    In addition, please refer to URL:
    http://www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
    for Fix Pack PTF information.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI10924

  • Reported component name

    WEBSPHERE FOR Z

  • Reported component ID

    5655I3500

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-02-03

  • Closed date

    2014-04-01

  • Last modified date

    2014-06-03

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    PI19039

Fix information

  • Fixed component name

    WEBSPHERE FOR Z

  • Fixed component ID

    5655I3500

Applicable component levels

  • R850 PSY

       UP



Document information

More support for: WebSphere Application Server for z/OS
General

Software version: 850

Reference #: PI10924

Modified date: 03 June 2014