Petals SE Flowable

Error: "Unable to find the service task 'xxx' to force its asynchronous execution."

Details

  • Type: Bug Bug
  • Status: Resolved Resolved
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: 1.1.2
  • Fix Version/s: 1.2.0
  • Component/s: Process service
  • Security Level: Public
  • Description:
    Hide

    If a service task is defined into a sub-process, we get the following warning when deploying the process:

    Unable to find the service task 'xxx' to force its asynchronous execution.

    And NPE occurs on MONIT traces of associated to the service task:

    sample-0 2019/06/11 17:40:59,897 GMT+0200 WARNING [org.flowable.engine.common.impl.event.FlowableEventSupport] : Exception while executing event-listener, which was ignored
java.lang.NullPointerException
	at org.ow2.petals.flowable.event.ServiceTaskStartedEventListener.processEvent(ServiceTaskStartedEventListener.java:64)
	at org.ow2.petals.flowable.event.AbstractEventListener.onEvent(AbstractEventListener.java:56)
	at org.flowable.engine.common.impl.event.FlowableEventSupport.dispatchEvent(FlowableEventSupport.java:104)
	at org.flowable.engine.common.impl.event.FlowableEventSupport.dispatchEvent(FlowableEventSupport.java:97)
	at org.flowable.engine.common.impl.event.FlowableEventDispatcherImpl.dispatchEvent(FlowableEventDispatcherImpl.java:65)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeActivityBehavior(ContinueProcessOperation.java:249)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeSynchronous(ContinueProcessOperation.java:154)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughFlowNode(ContinueProcessOperation.java:111)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughSequenceFlow(ContinueProcessOperation.java:303)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.run(ContinueProcessOperation.java:77)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:88)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:72)
	at org.flowable.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:56)
	at org.flowable.engine.impl.interceptor.BpmnOverrideContextInterceptor.execute(BpmnOverrideContextInterceptor.java:25)
	at org.flowable.engine.common.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:53)
	at org.flowable.engine.common.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:72)
	at org.flowable.engine.common.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.flowable.engine.common.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56)
	at org.flowable.engine.common.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:51)
	at org.flowable.engine.impl.RuntimeServiceImpl.startProcessInstanceById(RuntimeServiceImpl.java:143)
	at org.ow2.petals.flowable.incoming.operation.NoneStartEventOperation.createProcessInstance(NoneStartEventOperation.java:78)
	at org.ow2.petals.flowable.incoming.operation.StartEventOperation.doExecute(StartEventOperation.java:143)
	at org.ow2.petals.flowable.incoming.operation.FlowableOperation.execute(FlowableOperation.java:211)
	at org.ow2.petals.flowable.incoming.FlowableJBIListener.onJBIMessage(FlowableJBIListener.java:144)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.invokeJBIListener(MessageExchangeProcessor.java:525)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.processAsProvider(MessageExchangeProcessor.java:493)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.process(MessageExchangeProcessor.java:283)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.run(MessageExchangeProcessor.java:181)
	at org.ow2.petals.component.framework.process.JBIProcessorThreadPoolExecutor$ExchangeRunnable.run(JBIProcessorThreadPoolExecutor.java:90)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
	at org.ow2.petals.component.framework.process.JBIProcessorThreadFactory$JBIProcessorThread.run(JBIProcessorThreadFactory.java:99)

    The process works fine, but these errors ruin log traces

    Show
    If a service task is defined into a sub-process, we get the following warning when deploying the process: 
    Unable to find the service task 'xxx' to force its asynchronous execution.
    And NPE occurs on MONIT traces of associated to the service task: 
    sample-0 2019/06/11 17:40:59,897 GMT+0200 WARNING [org.flowable.engine.common.impl.event.FlowableEventSupport] : Exception while executing event-listener, which was ignored
java.lang.NullPointerException
	at org.ow2.petals.flowable.event.ServiceTaskStartedEventListener.processEvent(ServiceTaskStartedEventListener.java:64)
	at org.ow2.petals.flowable.event.AbstractEventListener.onEvent(AbstractEventListener.java:56)
	at org.flowable.engine.common.impl.event.FlowableEventSupport.dispatchEvent(FlowableEventSupport.java:104)
	at org.flowable.engine.common.impl.event.FlowableEventSupport.dispatchEvent(FlowableEventSupport.java:97)
	at org.flowable.engine.common.impl.event.FlowableEventDispatcherImpl.dispatchEvent(FlowableEventDispatcherImpl.java:65)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeActivityBehavior(ContinueProcessOperation.java:249)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeSynchronous(ContinueProcessOperation.java:154)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughFlowNode(ContinueProcessOperation.java:111)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughSequenceFlow(ContinueProcessOperation.java:303)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.run(ContinueProcessOperation.java:77)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:88)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:72)
	at org.flowable.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:56)
	at org.flowable.engine.impl.interceptor.BpmnOverrideContextInterceptor.execute(BpmnOverrideContextInterceptor.java:25)
	at org.flowable.engine.common.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:53)
	at org.flowable.engine.common.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:72)
	at org.flowable.engine.common.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.flowable.engine.common.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56)
	at org.flowable.engine.common.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:51)
	at org.flowable.engine.impl.RuntimeServiceImpl.startProcessInstanceById(RuntimeServiceImpl.java:143)
	at org.ow2.petals.flowable.incoming.operation.NoneStartEventOperation.createProcessInstance(NoneStartEventOperation.java:78)
	at org.ow2.petals.flowable.incoming.operation.StartEventOperation.doExecute(StartEventOperation.java:143)
	at org.ow2.petals.flowable.incoming.operation.FlowableOperation.execute(FlowableOperation.java:211)
	at org.ow2.petals.flowable.incoming.FlowableJBIListener.onJBIMessage(FlowableJBIListener.java:144)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.invokeJBIListener(MessageExchangeProcessor.java:525)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.processAsProvider(MessageExchangeProcessor.java:493)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.process(MessageExchangeProcessor.java:283)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.run(MessageExchangeProcessor.java:181)
	at org.ow2.petals.component.framework.process.JBIProcessorThreadPoolExecutor$ExchangeRunnable.run(JBIProcessorThreadPoolExecutor.java:90)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
	at org.ow2.petals.component.framework.process.JBIProcessorThreadFactory$JBIProcessorThread.run(JBIProcessorThreadFactory.java:99)
    The process works fine, but these errors ruin log traces
  • Environment:
    -

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Christophe DENEUX added a comment - Wed, 12 Jun 2019 - 08:27:13 +0200

Fixed in branch petals-se-flowable-1.1.x

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Christophe DENEUX added a comment - Wed, 12 Jun 2019 - 08:27:13 +0200 Fixed in branch petals-se-flowable-1.1.x
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Christophe DENEUX added a comment - Wed, 12 Jun 2019 - 08:27:26 +0200

Reopen to be merged in master

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Christophe DENEUX added a comment - Wed, 12 Jun 2019 - 08:27:26 +0200 Reopen to be merged in master
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Christophe DENEUX added a comment - Wed, 12 Jun 2019 - 08:27:37 +0200

Merged in master

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Christophe DENEUX added a comment - Wed, 12 Jun 2019 - 08:27:37 +0200 Merged in master

People

Dates

  • Created:
    Tue, 11 Jun 2019 - 17:44:14 +0200
    Updated:
    Wed, 12 Jun 2019 - 08:27:37 +0200
    Resolved:
    Wed, 12 Jun 2019 - 08:27:37 +0200
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