Issue/Introduction:
Deploying CA Application Performance Management Java Agent to monitoring IBM Message Queue(MQ), after start the agent the application logs started to be filled with below error message:
ExtendedMessage: CWWIM6003I Initialization of the dynamic reload manager completed successfully.
Trace: 01 t=9C2E88 c=UNK key=P8 (00000011)
Description: Log Java Message
Message: CWWIM6003I Initialization of the dynamic reload manager completed successfully.
java.lang.ClassNotFoundException: com.wily.powerpack.websphereMQ.agent.extensions.tracer.hc2.MQBackendTracer
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:240)
at com.wily.introscope.agent.extension.DynamicClassLookup.loadDynamicClassEntry(DynamicClassLookup.java:230)
at com.wily.introscope.agent.trace.TracerFactoryLoader.createTracerFactory(TracerFactoryLoader.java:66)
at com.wily.introscope.agent.trace.TracerAdministrator.createTracerFactories(TracerAdministrator.java:699)
at com.wily.introscope.agent.trace.TracerAdministrator.createProbeInformation(TracerAdministrator.java:662)
at com.wily.introscope.agent.trace.TracerAdministrator.access$0(TracerAdministrator.java:649)
at com.wily.introscope.agent.trace.TracerAdministrator$ProbeInformationCreator.IProbeInformationCreator_createProbeInformation(TracerAdministrator.java:806)
at com.wily.introscope.agent.trace.ProbeLookup.getProbeInformation(ProbeLookup.java:102)
at com.wily.introscope.agent.trace.TracerAdministrator.getProbeInformation(TracerAdministrator.java:639)
at com.wily.introscope.agent.trace.TracerAdministrator.loadParameterizedTracer(TracerAdministrator.java:456)
at com.wily.introscope.agent.enterprise.EnterpriseAgent.IAgent_loadParameterizedTracer(EnterpriseAgent.java:1013)
at com.wily.introscope.agent.AgentShim.ProbeBuilderEntryPoint_loadParameterizedTracer(AgentShim.java:1270)
at com.ibm.mq.jms.MQSession.close(MQSession.java)
at com.ibm.mq.connector.inbound.ServerSessionImpl.close(ServerSessionImpl.java:326)
at com.ibm.mq.connector.inbound.ServerSessionPoolImpl.poolCleanup(ServerSessionPoolImpl.java:764)
at com.ibm.mq.connector.inbound.PoolScavengerThread.run(PoolScavengerThread.java:101)
Inside Agent.Profile for this agent you can see the directives being listed:
introscope.autoprobe.directivesFile=websphere-typical.pbl,hotdeploy,webspheremq.pbl,PPWebSphere7.0zOS.pbd
Cause:
It happens due the missing or out of compatibility with the others JARs inside wily/core/ext
MQNameFormatter.jar contains these MQ classes responsible for this behavior.
Environment:
We saw this behavior in 10.5 and 10.7 release, but it is valid for any supported release for MQ Java connector monitoring.
Resolution:
To address this behavior, please follow the procedure below:
- Make sure to have the MQNameFormatter.jar inside the path Agent_home/core/ext.
- If the MQNameFormatter.jar is not inside Agent_home/core/ext.
- . Copy it from the path Agent_home/examples/PowerPackForWebSphereMQ/ext and paste inside Agent_home/core/ext.
- If you do already have the JAR MQNameFormatter.jar inside the path Agent_home/core/ext and you are receiving this class error, it is due to the incompatibility of the current JAR, to address, copy it from the path Agent_home/examples/PowerPackForWebSphereMQ/ext and paste inside Agent_home/core/ext.
- Restart the application being monitored after the above changes.