jbpm gateway loop problem (StackOverflowError)

[chobk]

jbpm gateway loop problem

I'm currently testing a jbpm 6.5
I tried to implement iteration through the gateway.

Attach an error occurred when it was tested as a source.

I would like to know whether a gate way is wrong with the configuration you want to limit the loop processing.

Error information as follows:

java.lang.StackOverflowError
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.<init>(NodeInstanceImpl.java:60)
at org.jbpm.workflow.instance.node.ActionNodeInstance.<init>(ActionNodeInstance.java:31)
at sun.reflect.GeneratedConstructorAccessor2.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:379)
at org.jbpm.workflow.instance.impl.factory.CreateNewNodeFactory.getNodeInstance(CreateNewNodeFactory.java:36)
at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.getNodeInstance(WorkflowProcessInstanceImpl.java:249)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.followConnection(NodeInstanceImpl.java:352)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:318)
at org.jbpm.workflow.instance.node.JoinInstance.triggerCompleted(JoinInstance.java:266)
at org.jbpm.workflow.instance.node.JoinInstance.internalTrigger(JoinInstance.java:62)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:173)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:366)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:381)
at org.jbpm.workflow.instance.node.SplitInstance.executeStrategy(SplitInstance.java:117)
at org.jbpm.workflow.instance.node.SplitInstance.internalTrigger(SplitInstance.java:63)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:173)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:366)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:325)
at org.jbpm.workflow.instance.node.ActionNodeInstance.triggerCompleted(ActionNodeInstance.java:61)
at org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:57)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:173)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:366)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:325)
at org.jbpm.workflow.instance.node.ActionNodeInstance.triggerCompleted(ActionNodeInstance.java:61)
at org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:57)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:173)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:366)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:325)
at org.jbpm.workflow.instance.node.ActionNodeInstance.triggerCompleted(ActionNodeInstance.java:61)

[abhumbe]

You have set 'totCOUNT' variable value too high, I changed it to 100 and its working fine. If you think 1000 is valid value then we can change default thread stack size using -Xss option. Depending on the JVM, the default thread stack size may equal to 512KB.

[dmarrazzo]

Hi,

I think that you are misusing the BPMN notation, it's not intended to be a sort of visual programming (a flow chart), but you should model "business" processes.

Said that the BPMN construct to create loop is the Multiple Instance subprocess, here you can find an example:

rh-bpm-notes/subprocesses.md at master · dmarrazzo/rh-bpm-notes · GitHub