PI67470: A java.util.ConcurrentModificationException may be thrown when a serveServletsByClassname resource is requested.

Fixes are available

APAR status

Closed as program error.

Error description

A java.util.ConcurrentModificationException may be thrown when
a serveServletsByClassname resource is requested.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  IBM WebSphere Application Server            *
*                  Traditional versions 9.0, and Websphere     *
*                  Application Server Liberty users.           *
****************************************************************
* PROBLEM DESCRIPTION: A concurrentModificationException       *
*                      may be thrown on a busy server while    *
*                      requests are handled for the same       *
*                      servlet.                                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
If multiple requests arrive for the same servlet and
serveServletsByClassname is enabled , a
java.util.ConcurrentModificationException may be thrown and
the following message is logged in the SystemOut log and an
ffdc is generated.
An example of the exception is:
SRVE0293E: [Servlet Error]-[ServletNameNotFound]:
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1448)
at java.util.HashMap$ValueIterator.next(HashMap.java:1477)
at
com.ibm.ws.webcontainer.extension.InvokerExtensionProcessor.getS
ervletWrapper(InvokerExtensionProcessor.java:305)

Problem conclusion

The webcontainer code has been fixed to resolve the
java.util.ConcurrentModificationException.

The fix for this APAR is currently targeted for inclusion in
fix pack 9.0.0.1 and  Liberty 16.0.0.3.
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
PI67470
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
900
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-08-14
Closed date
2016-09-08
Last modified date
2016-09-08

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

R900 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":"9.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI67470: A java.util.ConcurrentModificationException may be thrown when a serveServletsByClassname resource is requested.

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

R900 PSY

Document Information

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