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

Fixes are available

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

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 April 2022

Tips

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

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R850 PSY

Document Information

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