Hello,

i’m using the latest version 5.1.1 of drools-flow for a POC project.

I have a process definition where I have an intermediate event node within a foreach CompositeNode.

When I trigger the event using processInstance.signalEvent() I get a ClassCastException:

java.lang.ClassCastException: org.drools.workflow.core.node.CompositeContextNode cannot be cast to org.drools.workflow.core.node.EventNode

            at org.drools.workflow.instance.node.EventNodeInstance.getEventNode(EventNodeInstance.java:62)

            at org.drools.workflow.instance.node.EventNodeInstance.signalEvent(EventNodeInstance.java:36)

            at org.drools.workflow.instance.node.CompositeNodeInstance.signalEvent(CompositeNodeInstance.java:231)

            at org.drools.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(WorkflowProcessInstanceImpl.java:357)

            at de.bdr.prototype.ProcessTest.main(ProcessTest.java:36)

Many thanks for any help!

-Jan

Below my process definition:

<?xml version="1.0" encoding="UTF-8"?>

<process xmlns="http://drools.org/drools-5.0/process"

         xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"

         xs:schemaLocation="http://drools.org/drools-5.0/process drools-processes-5.0.xsd"

         type="RuleFlow" name="flow" id="processOrders" package-name="order.flow" >

  <header>

    <variables>

      <variable name="orderPreparationResult" >

        <type name="org.drools.process.core.datatype.impl.type.UndefinedDataType" />

      </variable>

      <variable name="orders" >

        <type name="org.drools.process.core.datatype.impl.type.ObjectDataType" className="java.util.List" />

      </variable>

    </variables>

  </header>

  <nodes>

    <start id="1" name="Start" x="227" y="16" width="228" height="40" />

    <forEach id="2" name="ForEach" x="16" y="88" width="650" height="196" variableName="order" collectionExpression="orders" >

      <nodes>

    <eventNode id="2" name="OrderPreparation Response" x="146" y="133" width="166" height="40">

      <eventFilters>

        <eventFilter type="eventType" eventType="OrderPreparationEvent" />

      </eventFilters>

    </eventNode>

    <actionNode id="3" name="ORDER_PREP" x="9" y="53" width="151" height="50" >

        <action type="expression" dialect="java" >System.out.println("Call Order prep");</action>

    </actionNode>

    <join id="4" name="Join" x="191" y="59" width="80" height="40" type="1" />

    <actionNode id="5" name="ORDER_VALIDATION" x="300" y="56" width="141" height="40" >

        <action type="expression" dialect="java" >System.out.println("Order validation");</action>

    </actionNode>

    <actionNode id="6" name="POPULATE_DB" x="470" y="55" width="152" height="40" >

        <action type="expression" dialect="java" >System.out.println("Save to db");</action>

    </actionNode>

      </nodes>

      <connections>

    <connection from="3" to="4" />

    <connection from="2" to="4" />

    <connection from="4" to="5" />

    <connection from="5" to="6" />

      </connections>

      <in-ports>

        <in-port type="DROOLS_DEFAULT" nodeId="3" nodeInType="DROOLS_DEFAULT" />

      </in-ports>

      <out-ports>

        <out-port type="DROOLS_DEFAULT" nodeId="6" nodeOutType="DROOLS_DEFAULT" />

      </out-ports>

    </forEach>

    <end id="4" name="End" x="227" y="388" width="228" height="40" />

    <actionNode id="5" name="NOTIFY " x="288" y="316" width="106" height="40" >

        <action type="expression" dialect="java" >System.out.println("Notify");</action>

    </actionNode>

  </nodes>

  <connections>

    <connection from="1" to="2" />

    <connection from="5" to="4" />

    <connection from="2" to="5" />

  </connections>

</process>