Support Article
Connect_REST-Run_IN_Parallel issue
SA-47088
Summary
When trying to use Run_In_Parallel with two Connect_REST in an activity, user gets error message, when is executed same Connect-REST rules as synchronous call, then it works.
Error Messages
2017-10-10 17:18:35,028 [v2_svpprc,maxpri=10]] [ STANDARD] [ PegaSample:01.01] (nvoke.Rule_Connect_REST.Action) ERROR User1 - com.pega.pegarules.pub.services.ConnectorException: Caught unhandled exception: java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 0
com.pega.pegarules.pub.services.ConnectorException: Caught unhandled exception: java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 0
at com.pegarules.generated.activity.ra_action_pyinvokerestconnector_410497452ae304b355cff4d17daace5e.step5_circum0(ra_action_pyinvokerestconnector_410497452ae304b355cff4d17daace5e.java:1407)
at com.pegarules.generated.activity.ra_action_pyinvokerestconnector_410497452ae304b355cff4d17daace5e.perform(ra_action_pyinvokerestconnector_410497452ae304b355cff4d17daace5e.java:140)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3020)
at com.pegarules.generated.activity.ra_action_invoke_db6a6695924a86e67ba1b3b2707ed8cc.step7_circum0(ra_action_invoke_db6a6695924a86e67ba1b3b2707ed8cc.java:1051)
at com.pegarules.generated.activity.ra_action_invoke_db6a6695924a86e67ba1b3b2707ed8cc.perform(ra_action_invoke_db6a6695924a86e67ba1b3b2707ed8cc.java:175)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3020)
at com.pegarules.generated.activity.ra_action_childinvoke_d9147708819cca9d197101bb02c3066f.step4_circum0(ra_action_childinvoke_d9147708819cca9d197101bb02c3066f.java:447)
at com.pegarules.generated.activity.ra_action_childinvoke_d9147708819cca9d197101bb02c3066f.perform(ra_action_childinvoke_d9147708819cca9d197101bb02c3066f.java:129)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3020)
at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:617)
at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivities(ThreadRunner.java:545)
at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivities(PRThreadImpl.java:581)
at com.pega.pegarules.session.internal.async.agent.QueueProcessor.executeBatchTask(QueueProcessor.java:253)
at com.pega.pegarules.session.internal.async.agent.QueueProcessor.execute(QueueProcessor.java:316)
at com.pega.pegarules.session.internal.async.BatchRequestorTask.run(BatchRequestorTask.java:837)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1079)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:814)
at com.pega.pegarules.session.internal.async.BatchRequestorTask.run(BatchRequestorTask.java:586)
at com.pega.pegarules.session.internal.async.Agent.runBatchTask(Agent.java:706)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.AsyncServant.processAsyncTask(AsyncServant.java:193)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.AsyncServant.invoke(AsyncServant.java:148)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:312)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:263)
at com.pega.pegarules.session.internal.engineinterface.etier.ejb.EngineBean.invokeEngine(EngineBean.java:221)
at sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:611)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:349)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:390)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingException(PRBootstrap.java:412)
at com.pega.pegarules.internal.etier.ejb.EngineBeanBoot.invokeEngine(EngineBeanBoot.java:168)
at com.pega.pegarules.internal.etier.interfaces.EJSLocalStatelessEngineBMT_f2439d86.invokeEngine(Unknown Source)
at com.pega.pegarules.session.internal.engineinterface.etier.mdb.PRAsync.processRequest(PRAsync.java:151)
at com.pega.pegarules.session.internal.engineinterface.etier.asynchbeans.AsyncTask.run(AsyncTask.java:60)
at com.pega.pegarules.session.internal.engineinterface.etier.asynchbeans.RunnableWrapper.run(RunnableWrapper.java:67)
at com.ibm.ws.asynchbeans.J2EEContext$RunProxy.run(J2EEContext.java:270)
at java.security.AccessController.doPrivileged(AccessController.java:384)
at javax.security.auth.Subject.doAs(Subject.java:495)
at com.ibm.websphere.security.auth.WSSubject.doAs(WSSubject.java:131)
at com.ibm.websphere.security.auth.WSSubject.doAs(WSSubject.java:89)
at com.ibm.ws.asynchbeans.J2EEContext$DoAsProxy.run(J2EEContext.java:337)
at java.security.AccessController.doPrivileged(AccessController.java:413)
at com.ibm.ws.asynchbeans.J2EEContext.run(J2EEContext.java:779)
at com.ibm.ws.asynchbeans.WorkWithExecutionContextImpl.go(WorkWithExecutionContextImpl.java:222)
at com.ibm.ws.asynchbeans.ABWorkItemImpl.run(ABWorkItemImpl.java:159)
at java.lang.Thread.run(Thread.java:767)
Caused by:
java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 0
at com.pegarules.generated.activity.ra_action_pyinvokerestconnector_410497452ae304b355cff4d17daace5e.step5_circum0(ra_action_pyinvokerestconnector_410497452ae304b355cff4d17daace5e.java:871)
... 45 more
Steps to Reproduce
1. Make both services use Run_In_Parallel and use a connect_wait step.
2. On invoking the service, there is a service issue.
Root Cause
A defect in Pegasystems’ code or rules
Resolution
Perform the following local-change:
Create following 'Property-Set' step before the 'Connect-Rest' step. Properties Value should match the type of REST method(GET, POST, and so on).
Also it is recommended to refer all the values within the connect-rest outbound mapping with respect to Connect-Rest step page.
Published March 28, 2018 - Updated October 8, 2020
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