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2451442 - Java Scheduler job to initiate BPM process instances failing without apparent reason

Symptom

You've developed a project at NWDS/Eclipse to allow starting BPM process instances in a scheduled job.

The job is then scheduled by using the NetWeaver Java Scheduler. 

When the job is executed, it fails without any apparent reason. While collecting the traces (SAP Note 1332726), only the following exception appears:

Unexpected exception occurred during Job.onJob() execution:
, Job -> 
  , JobId: <job_id>
[EXCEPTION]
java.lang.Exception: Caller stack trace:
at com.sap.engine.services.scheduler.runtime.mdb.MDBJobDelegateImpl.onMessage(MDBJobDelegateImpl.java:446)
at com.sap.scheduler.runtime.mdb.MDBJobImplementation.onMessage(MDBJobImplementation.java:59)
at sun.reflect.GeneratedMethodAccessor587.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sap.engine.services.ejb3.runtime.impl.RequestInvocationContext.proceedFinal(RequestInvocationContext.java:47)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:166)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_StatesTransition.invoke(Interceptors_StatesTransition.java:19)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_Resource.invoke(Interceptors_Resource.java:50)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_MessageListenerType.invoke(Interceptors_MessageListenerType.java:86)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:191)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_StatelessInstanceGetter.invoke(Interceptors_StatelessInstanceGetter.java:23)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_SecurityCheck.invoke(Interceptors_SecurityCheck.java:25)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_ExceptionTracer.invoke(Interceptors_ExceptionTracer.java:17)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179)
at com.sap.engine.services.ejb3.runtime.impl.Interceptors_Lock.invoke(Interceptors_Lock.java:21)
at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179)
at com.sap.engine.services.ejb3.runtime.impl.DefaultInvocationChainsManager.startChain(DefaultInvocationChainsManager.java:138)
at com.sap.engine.services.ejb3.runtime.impl.DefaultEJBProxyInvocationHandler.invoke(DefaultEJBProxyInvocationHandler.java:172)
at com.sap.engine.services.ejb3.runtime.impl.MDBProxyInvocationHandler.invoke(MDBProxyInvocationHandler.java:142)
at com.sun.proxy.$Proxy554.onMessage(Unknown Source)
at com.sap.jms.client.session.JMSSession.deliverMessage(JMSSession.java:1075)
at com.sap.jms.client.session.JMSSession.run(JMSSession.java:898)
at com.sap.jms.resourceadapter.RaServerSession.run(RaServerSession.java:139)
at com.sap.engine.services.connector.jca15.work.TaskImpl.run(TaskImpl.java:410)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:122)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:101)
at com.sap.engine.core.thread.execution.CentralExecutor$SingleThread.run(CentralExecutor.java:328)

This exception does not help on finding out what the exact problem is.


Read more...

Environment

  • Business Process Management (BPM)
  • Java Scheduler
  • BPM API

Product

SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP enhancement package 1 for SAP NetWeaver 7.3

Keywords

javascheduler, getProcessDefinitionManager, j2ee, project, NoClassDefFoundError , KBA , BC-BMT-BPM-SRV , Process Server , BC-JAS-BTC , NetWeaver Scheduler (Java) , Problem

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