PK95241: CLASSNOTFOUND EXCEPTION WHILE LOADING MBEAN PROXY

Fixes are available

APAR status

Closed as program error.

Error description

ClassNotFound Exception while loading MBean proxy. The
exception resolves itself as subsequent calls to the proxy are
successful. Functionally this does not affect anything. The only
issue is the existence of the ClassNotFoundException:
com.ibm.ws390.management.proxy.EndpointMBeanProxy
at java.lang.Class.forNameImple(Native Method)
at java.lang.Class.forName(Class.java:136)
at com.ibm.ws.management.descriptor.MBeanDescriptorLoader.
setProxyOperationInfo(MBeanDescriptorLoader.java:1290)

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All IBM WebSphere Application Server        *
*                  version 6.1 users on z/OS who use a static  *
*                  proxy collaborator class which exists in    *
*                  the external (lib) directory.               *
****************************************************************
* PROBLEM DESCRIPTION: ClassNotFoundException loading the      *
*                      collaborator for a static proxy in      *
*                      the z/OS control region.                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When a Java Management Extensions (JMX) Management Bean
(MBean) is activated for an MBean which has a static proxy
whose collaborator class exists in the lib directory or in a
bundle other than com.ibm.ws.runtime_6.1.0.jar, the following
may be seen in the control region log:
java.lang.ClassNotFoundException: <collaborator-class-name>
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:136)
at com.ibm.ws.management.descriptor.MBeanDescriptorLoader
.setProxyOperationInfo
at com.ibm.ws.management.descriptor.MBeanDescriptorLoader
.setDescriptorFields
at com.ibm.ws.management.descriptor.MBeanDescriptorLoader
.parseMBeanInfo
at com.ibm.ws.management.descriptor.MBeanDescriptorLoader
.startElement
...
at com.ibm.ws.management.descriptor.MBeanDescriptorLoader
.loadDescriptor
at com.ibm.ws.management.descriptor.MBeanDescriptorManager
.getDescriptor
at com.ibm.ws.management.ControlAdminServiceImpl
.registerProxyMBean
at com.ibm.ws.management.ControlAdminServiceImpl
.activateProxyMBean
...

Problem conclusion

The code is modified such that, if the collaborator class is
not found in com.ibm.ws.runtime_6.1.0.jar, the class is loaded
from the lib directory or from another bundle in the plugins
directory.

APAR PK95241 is currently targeted for inclusion in Service
Level (Fix Pack) 6.1.0.29 of WebSphere Application Server V6.1.

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
PK95241
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-09-01
Closed date
2009-09-10
Last modified date
2010-02-01

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

PM02880

Fix information

Fixed component name
WEBSPHERE FOR Z
Fixed component ID
5655I3500

Applicable component levels

R610 PSY UK53194
UP10/01/15 P F001

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":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.1","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
29 December 2021

Tips

PK95241: CLASSNOTFOUND EXCEPTION WHILE LOADING MBEAN PROXY

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

R610 PSY UK53194

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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