PM75938: THREADS HANGING IN WEB SERVICES OUTBOUNDCONNECTIONCACHE CLASS DUE TO NULLPOINTEREXCEPTION WHEN PROCESSING SOAP over HTTP

Fixes are available

APAR status

Closed as program error.

Error description

When web services engine is processing a SOAP/HTTP
message, the following exception is thrown:

[10/24/12 16:12:41:778 EST] 00000059 SOAPOverHTTPS 3
exception01 java.lang.NullPointerException
at
com.ibm.ws.websvcs.transport.http.SOAPOverHTTPSender.getTranspor
tHeaderChunked(SOAPOverHTTPSender.java:3754)
at
com.ibm.ws.websvcs.transport.http.SOAPOverHTTPSender.send(SOAPOv
erHTTPSender.java:761)
at
com.ibm.ws.websvcs.transport.http.HTTPTransportSender.invoke(HTT
PTransportSender.java:364)
at
org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:531)
at
org.apache.axis2.description.OutInAxisOperationClient.send(OutIn
AxisOperation.java:401)
at
org.apache.axis2.description.OutInAxisOperationClient.executeImp
l(OutInAxisOperation.java:228)
at
org.apache.axis2.client.OperationClient.execute(OperationClient.
java:163)
at
org.apache.axis2.jaxws.core.controller.impl.AxisInvocationContro
ller.execute(AxisInvocationController.java:581)
at
org.apache.axis2.jaxws.core.controller.impl.AxisInvocationContro
ller.doInvoke(AxisInvocationController.java:130)
at
org.apache.axis2.jaxws.core.controller.impl.InvocationController
Impl.invoke(InvocationControllerImpl.java:93)
at
org.apache.axis2.jaxws.client.dispatch.BaseDispatch.invoke(BaseD
ispatch.java:200)
at
com.ibm.ws.sca.internal.jaxws.handler.JaxWsPortHandler$3.run(Jax
WsPortHandler.java:441)
...

This will lead to threads hanging on OutboundConnectionCache
class because the connections are not cleaned up properly.

Local fix

```
N/A
```

Problem summary

****************************************************************
* USERS AFFECTED:  IBM WebSphere Application Server users      *
*                  using                                       *
*                  JAX-WS web services                         *
****************************************************************
* PROBLEM DESCRIPTION: Web services threads might hang due     *
*                      to an unexpected error while sending    *
*                      a SOAP message over HTTP or HTTPS       *
****************************************************************
* RECOMMENDATION:  Install a fix pack that includes this APAR  *
****************************************************************
Web Serice threads are hanging in the
com.ibm.ws.websvcs.transport.channel.OutboundConnectionCache
class.
Enable com.ibm.ws.websvcs.*=all tracing will show that there
are the following messages occurring in the trace log:
This is the message logged a NullPointerException while reading
http transport headers.
[10/18/12 16:12:24:175 EST] 00000043 ExceptionFact 1
org.apache.axis2.jaxws.ExceptionFactory logRootCause
stack:java.lang.NullPointerException
at
com.ibm.ws.websvcs.transport.http.SOAPOverHTTPSender.getTranspor
tHeaderChunked(SOAPOverHTTPSender.java:3754)
at
com.ibm.ws.websvcs.transport.http.SOAPOverHTTPSender.send(SOAPOv
erHTTPSender.java:761)
at
com.ibm.ws.websvcs.transport.http.HTTPTransportSender.invoke(HTT
PTransportSender.java:364)
at
org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:531)
This is the message logged the connection pool is full
[10/18/12 16:14:04:891 EST] 00000043 OutboundConne 1
WSWS3595I: Current pool size: 100. Connections-in-use size:
100.
Configured pool size: 100
This is the message logged for a wait time out while the
thread is waiting for a connection.
[10/18/12 16:14:06:931 EST] 00000043 ExceptionFact 1
org.apache.axis2.jaxws.ExceptionFactory logRootCause
stack:org.apache.axis2.AxisFault: WSWS7089I: The connection
wait
has timed out.
at
com.ibm.ws.websvcs.transport.channel.OutboundConnectionCache.fin
dGroupAndGetConnection(OutboundConnectionCache.java:841)
at
com.ibm.ws.websvcs.transport.http.SOAPOverHTTPSender.setupHTTPCo
nnection(SOAPOverHTTPSender.java:2088)
at com.ibm.ws.websvcs.transport.http.SOAPOverHTTPSender.
<init>(SOAPOverHTTPSender.java:413)
at
com.ibm.ws.websvcs.transport.http.HTTPTransportSender.invoke(HTT
PTransportSender.java:350)
These messages show the connection was not cleaned up properly
under this situation. The waiting threads can't get available
connnections.

Problem conclusion

A NullPointerException is thrown while the web services engine
is reading the transport headers from an http response message
which was not available for some reason. Under this situation,
the connection is not cleaned up properly, which caused the
pool of connections to become full. Therefore, the waiting
thread can't get an available connection.

The web service engine has been corrected to properly handle
connections under this situation.

The fix for this APAR is currently targeted for inclusion in
fix packs 7.0.0.29, 8.0.0.6 and 8.5.0.2 .  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
PM75938
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
2012-10-26
Closed date
2012-11-28
Last modified date
2012-11-28

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

R61A PSY
UP
R61H PSY
UP
R61I PSY
UP
R61P PSY
UP
R61S PSY
UP
R61W PSY
UP
R61Z PSY
UP
R700 PSY
UP
R850 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
29 October 2021

Tips

PM75938: THREADS HANGING IN WEB SERVICES OUTBOUNDCONNECTIONCACHE CLASS DUE TO NULLPOINTEREXCEPTION WHEN PROCESSING SOAP over HTTP

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

R61A PSY

R61H PSY

R61I PSY

R61P PSY

R61S PSY

R61W PSY

R61Z PSY

R700 PSY

R850 PSY

Document Information

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