PM21145: NULLPOINTEREXCEPTION IN SAX PARSER WHILE HANDLING A JAX-RPC REQUEST.

Fixes are available

APAR status

Closed as program error.

Error description

Under a load the following error can occur when parsing an
incoming SOAP envelope:
.
java.lang.NullPointerException
at
com.ibm.xml.xlxp2.scan.util.SimpleDataBufferFactory$DataBufferRe
ferrerQueue.remove(SimpleDataBufferFactory.java:91)
at
com.ibm.xml.xlxp2.scan.util.SimpleDataBufferFactory.removeReferr
er(SimpleDataBufferFactory.java:237)
at
com.ibm.xml.xlxp2.scan.util.ParsedEntity.clear(ParsedEntity.java
:190)
...
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at
com.ibm.ws.webservices.engine.utils.WebServicesParser.parse(WebS
ervicesParser.java:374)
...

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All IBM WebSphere Application Server        *
*                  users of JAX-RPC applications.              *
****************************************************************
* PROBLEM DESCRIPTION: A NullPointerException might be thrown  *
*                      by the SAX parser under heavy load.     *
****************************************************************
* RECOMMENDATION:  Install a fix pack that contains this APAR. *
****************************************************************
Under heavy load, the SAX parser used by the JAX-RPC runtime to
parse incoming SOAP messages may throw a NullPointerException.

Here is an example error:

java.lang.NullPointerException
at
com.ibm.xml.xlxp2.scan.util.SimpleDataBufferFactory$DataBufferRe
ferrerQueue.remove(SimpleDataBufferFactory.java:91)
at
com.ibm.xml.xlxp2.scan.util.SimpleDataBufferFactory.removeReferr
er(SimpleDataBufferFactory.java:237)
at
com.ibm.xml.xlxp2.scan.util.ParsedEntity.clear(ParsedEntity.java
:190)
...
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at
com.ibm.ws.webservices.engine.utils.WebServicesParser.parse(WebS
ervicesParser.java:374)
...

Problem conclusion

After the SAX parser has been used by the JAX-RPC runtime
for an extended period of time, the Just in Time (JIT) compiler
will apply optimizations to the parser code. Due to a defect
in the JIT (see APARs IZ70755 and IZ69786) a
NullPointerException could be thrown from the JIT compiled
code. To work around the issue in the JIT, a guard was added
to the parser code which checks whether a field is null before
dereferencing it.

APAR PM21145 is currently targeted for inclusion in Service
Level (Fix Pack) 7.0.0.15 of WebSphere Application Server V7.0.

Please refer to URL:
//www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
for Fix Pack availability.

Temporary fix

Comments

APAR Information

APAR number
PM21145
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-08-24
Closed date
2010-09-15
Last modified date
2011-04-04

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
WEBSPHERE FOR Z
Fixed component ID
5655I3500

Applicable component levels

R700 PSY UK65060
UP11/03/04 P F103

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
24 October 2021

Tips

PM21145: NULLPOINTEREXCEPTION IN SAX PARSER WHILE HANDLING A JAX-RPC REQUEST.

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

R700 PSY UK65060

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

Document Information

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