Could not open the editor: An exception was thrown ...

[mhw]

Hi,

I have a simple process with a wait node. If i open it with the ActivitiBMPN2Editor a ".activiti"-file is generated. If I open this with the org.activiti.designer.editor.multiPageEditor an exception is thown. This is extremly annoying. Why the editor cannot give me a chance to correct it?
Additionaly I wonder why a valid process is leading to generation of a wrong ".activiti"-file.
Is this a bug or am I missing something?
My process:

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:activiti="http://activiti.org/bpmn"
   xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC"
   xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema"
   expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="Examples">
   <process id="EXAMPLE_WAIT_NODE" name="EXAMPLE_WAIT_NODE">
      <startEvent id="id_1_Start" name="Start" />

      <sequenceFlow sourceRef="id_1_Start" targetRef="id_2_Dialog" />

      <serviceTask id="id_2_Dialog" name="Info Dialog"
         activiti:class="com.bigcompany.wfe.activiti.delegate.DialogDelegate">
         <extensionElements>
            <activiti:field name="interactions">
               <activiti:string>NOKEY_NoKey_TRUE_XXXXXXXXXX_Continue_Continue_TRUE</activiti:string>
            </activiti:field>
         </extensionElements>
      </serviceTask>

      <sequenceFlow targetRef="id_3_WAIT" sourceRef="id_2_Dialog">
         <conditionExpression>
            ${keyPressed == 'NOKEY'}
            </conditionExpression>
      </sequenceFlow>
      <sequenceFlow targetRef="id_4_End" sourceRef="id_2_Dialog">
         <conditionExpression>
            ${keyPressed == 'Continue'}
         </conditionExpression>
      </sequenceFlow>

      <intermediateCatchEvent id="id_3_WAIT">
         <timerEventDefinition>
            <timeDuration>PT1S</timeDuration>
         </timerEventDefinition>
      </intermediateCatchEvent>
      <sequenceFlow sourceRef="id_3_WAIT" targetRef="id_2_Dialog" />

      <endEvent id="id_4_End" />
   </process>
</definitions>
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The exception:

org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.eclipse.emf.ecore.xmi.UnresolvedReferenceException: Unresolved reference 'flow4'. (platform:/resource/wfe_activity/src/com/bigcompany/wfe/test/res/Example_Wait_Node.activiti, 152, 222)
   at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:315)
   at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)
   at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:397)
…‍‍‍‍‍

The generated ".activiti"-file:

<?xml version="1.0" encoding="ASCII"?>
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:al="http://eclipse.org/graphiti/mm/algorithms" xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL-XMI" xmlns:pi="http://eclipse.org/graphiti/mm/pictograms">
  <pi:Diagram visible="true" gridUnit="10" diagramTypeId="BPMNdiagram" name="Example_Wait_Node" snapToGrid="true" showGuides="true" pictogramLinks="/0/@children.0/@link /0/@children.1/@link /0/@children.1/@children.0/@link /0/@children.2/@link /0/@connections.0/@link /0/@connections.1/@link">
    <graphicsAlgorithm xsi:type="al:Rectangle" background="/0/@colors.1" foreground="/0/@colors.0" lineWidth="1" transparency="0.0" width="1000" height="1000"/>
    <children xsi:type="pi:ContainerShape" visible="true" active="true">
      <graphicsAlgorithm xsi:type="al:Ellipse" lineWidth="1" filled="false" lineVisible="false" transparency="0.0" width="35" height="35" x="30" y="200">
        <graphicsAlgorithmChildren xsi:type="al:Ellipse" lineWidth="1" transparency="0.0" width="35" height="35" style="/0/@styles.0"/>
      </graphicsAlgorithm>
      <link businessObjects="startevent1"/>
      <anchors xsi:type="pi:ChopboxAnchor" outgoingConnections="/0/@connections.0"/>
      <anchors xsi:type="pi:BoxRelativeAnchor" visible="true" active="true" referencedGraphicsAlgorithm="/0/@children.0/@graphicsAlgorithm/@graphicsAlgorithmChildren.0" relativeWidth="1.0" relativeHeight="0.51">
        <graphicsAlgorithm xsi:type="al:Ellipse" filled="false" lineVisible="false"/>
      </anchors>
    </children>
    <children xsi:type="pi:ContainerShape" visible="true" active="true">
      <graphicsAlgorithm xsi:type="al:Rectangle" lineWidth="1" filled="false" lineVisible="false" transparency="0.0" width="105" height="55" x="125" y="190">
        <graphicsAlgorithmChildren xsi:type="al:RoundedRectangle" lineWidth="1" transparency="0.0" width="105" height="55" style="/0/@styles.1" cornerHeight="20" cornerWidth="20"/>
      </graphicsAlgorithm>
      <link businessObjects="servicetask1"/>
      <anchors xsi:type="pi:ChopboxAnchor" outgoingConnections="/0/@connections.1" incomingConnections="/0/@connections.0"/>
      <anchors xsi:type="pi:BoxRelativeAnchor" visible="true" active="true" referencedGraphicsAlgorithm="/0/@children.1/@graphicsAlgorithm/@graphicsAlgorithmChildren.0" relativeWidth="1.0" relativeHeight="0.51">
        <graphicsAlgorithm xsi:type="al:Ellipse" filled="false" lineVisible="false"/>
      </anchors>
      <children visible="true">
        <graphicsAlgorithm xsi:type="al:MultiText" lineWidth="1" transparency="0.0" width="105" height="30" y="20" style="/0/@styles.1" font="/0/@fonts.0" horizontalAlignment="ALIGNMENT_CENTER" value="Info Dialog"/>
        <link businessObjects="servicetask1"/>
      </children>
      <children visible="true">
        <graphicsAlgorithm xsi:type="al:Image" lineWidth="1" transparency="0.0" width="16" height="16" x="5" y="5" id="org.activiti.designer.servicetask" stretchH="false" stretchV="false" proportional="false"/>
      </children>
    </children>
    <children xsi:type="pi:ContainerShape" visible="true" active="true">
      <graphicsAlgorithm xsi:type="al:Ellipse" lineWidth="1" filled="false" lineVisible="false" transparency="0.0" width="35" height="35" x="290" y="200">
        <graphicsAlgorithmChildren xsi:type="al:Ellipse" lineWidth="3" transparency="0.0" width="35" height="35" style="/0/@styles.0"/>
      </graphicsAlgorithm>
      <link businessObjects="endevent1"/>
      <anchors xsi:type="pi:ChopboxAnchor" incomingConnections="/0/@connections.1"/>
    </children>
    <styles foreground="/0/@colors.2" lineWidth="20" id="EVENT">
      <renderingStyle>
        <adaptedGradientColoredAreas definedStyleId="bpmnEventStyle" gradientType="0">
          <adaptedGradientColoredAreas styleAdaption="0">
            <gradientColor>
              <start locationType="LOCATION_TYPE_ABSOLUTE_START" locationValue="0">
                <color red="250" green="251" blue="252"/>
              </start>
              <end locationType="LOCATION_TYPE_ABSOLUTE_END" locationValue="0">
                <color red="250" green="251" blue="252"/>
              </end>
            </gradientColor>
          </adaptedGradientColoredAreas>
          <adaptedGradientColoredAreas styleAdaption="0">
            <gradientColor>
              <start locationType="LOCATION_TYPE_ABSOLUTE_START" locationValue="0">
                <color red="229" green="229" blue="194"/>
              </start>
              <end locationType="LOCATION_TYPE_ABSOLUTE_END" locationValue="0">
                <color red="229" green="229" blue="194"/>
              </end>
            </gradientColor>
          </adaptedGradientColoredAreas>
          <adaptedGradientColoredAreas styleAdaption="0">
            <gradientColor>
              <start locationType="LOCATION_TYPE_ABSOLUTE_START" locationValue="0">
                <color red="229" green="229" blue="194"/>
              </start>
              <end locationType="LOCATION_TYPE_ABSOLUTE_END" locationValue="0">
                <color red="229" green="229" blue="194"/>
              </end>
            </gradientColor>
          </adaptedGradientColoredAreas>
        </adaptedGradientColoredAreas>
      </renderingStyle>
    </styles>
    <styles foreground="/0/@colors.2" lineWidth="20" id="TASK">
      <renderingStyle>
        <adaptedGradientColoredAreas definedStyleId="bpmnTaskStyle" gradientType="0">
          <adaptedGradientColoredAreas styleAdaption="0">
            <gradientColor>
              <start locationType="LOCATION_TYPE_ABSOLUTE_START" locationValue="0">
                <color red="250" green="251" blue="252"/>
              </start>
              <end locationType="LOCATION_TYPE_ABSOLUTE_END" locationValue="0">
                <color red="255" green="255" blue="204"/>
              </end>
            </gradientColor>
          </adaptedGradientColoredAreas>
          <adaptedGradientColoredAreas styleAdaption="0">
            <gradientColor>
              <start locationType="LOCATION_TYPE_ABSOLUTE_START" locationValue="0">
                <color red="229" green="229" blue="194"/>
              </start>
              <end locationType="LOCATION_TYPE_ABSOLUTE_END" locationValue="0">
                <color red="229" green="229" blue="194"/>
              </end>
            </gradientColor>
          </adaptedGradientColoredAreas>
          <adaptedGradientColoredAreas styleAdaption="0">
            <gradientColor>
              <start locationType="LOCATION_TYPE_ABSOLUTE_START" locationValue="0">
                <color red="229" green="229" blue="194"/>
              </start>
              <end locationType="LOCATION_TYPE_ABSOLUTE_END" locationValue="0">
                <color red="229" green="229" blue="194"/>
              </end>
            </gradientColor>
          </adaptedGradientColoredAreas>
        </adaptedGradientColoredAreas>
      </renderingStyle>
    </styles>
    <styles background="/0/@colors.2" foreground="/0/@colors.2" lineWidth="1" id="BPMN-POLYGON-ARROW"/>
    <connections xsi:type="pi:FreeFormConnection" visible="true" active="true" start="/0/@children.0/@anchors.0" end="/0/@children.1/@anchors.0">
      <graphicsAlgorithm xsi:type="al:Polyline" foreground="/0/@colors.2" lineWidth="1" filled="false" transparency="0.0"/>
      <link businessObjects="flow1"/>
      <connectionDecorators visible="true" active="true" locationRelative="true" location="0.5">
        <graphicsAlgorithm xsi:type="al:Text" lineWidth="1" transparency="0.0" x="10" style="/0/@styles.1" font="/0/@fonts.0"/>
      </connectionDecorators>
      <connectionDecorators visible="true" locationRelative="true" location="1.0">
        <graphicsAlgorithm xsi:type="al:Polygon" lineWidth="1" transparency="0.0" style="/0/@styles.2">
          <points x="-10" y="-5" before="3" after="3"/>
          <points/>
          <points x="-10" y="5" before="3" after="3"/>
          <points x="-8" before="3" after="3"/>
        </graphicsAlgorithm>
      </connectionDecorators>
    </connections>
    <connections xsi:type="pi:FreeFormConnection" visible="true" active="true" start="/0/@children.1/@anchors.0" end="/0/@children.2/@anchors.0">
      <graphicsAlgorithm xsi:type="al:Polyline" foreground="/0/@colors.2" lineWidth="1" filled="false" transparency="0.0"/>
      <link businessObjects="flow3"/>
      <connectionDecorators visible="true" active="true" locationRelative="true" location="0.5">
        <graphicsAlgorithm xsi:type="al:Text" lineWidth="1" transparency="0.0" x="10" style="/0/@styles.1" font="/0/@fonts.0"/>
      </connectionDecorators>
      <connectionDecorators visible="true" locationRelative="true" location="1.0">
        <graphicsAlgorithm xsi:type="al:Polygon" lineWidth="1" transparency="0.0" style="/0/@styles.2">
          <points x="-10" y="-5" before="3" after="3"/>
          <points/>
          <points x="-10" y="5" before="3" after="3"/>
          <points x="-8" before="3" after="3"/>
        </graphicsAlgorithm>
      </connectionDecorators>
    </connections>
    <colors red="227" green="238" blue="249"/>
    <colors red="255" green="255" blue="255"/>
    <colors/>
    <fonts name="Arial" size="8"/>
  </pi:Diagram>
  <bpmn2:Process id="Example_Wait_Node" name="EXAMPLE_WAIT_NODE" namespace="Examples">
    <documentation id="documentation_process" text=""/>
  </bpmn2:Process>
  <bpmn2:StartEvent id="startevent1" name="Start" outgoing="flow1"/>
  <bpmn2:FieldExtension fieldname="interactions" expression=""/>
  <bpmn2:ServiceTask id="servicetask1" name="Info Dialog" incoming="flow1 flow4" outgoing="flow2 flow3" implementation="com.bigcompany.wfe.activiti.delegate.DialogDelegate" implementationType="classType" fieldExtensions="/3"/>
  <bpmn2:EndEvent id="endevent1" name="End" incoming="flow3"/>
  <bpmn2:SequenceFlow id="flow1" sourceRef="startevent1" targetRef="servicetask1"/>
  <bpmn2:SequenceFlow id="flow3" sourceRef="servicetask1" targetRef="endevent1">
    <conditionExpression body="&#xA;&#x9;&#x9;&#x9;&#x9;${keyPressed == 'Continue'}&#xA;&#x9;&#x9;&#x9;"/>
  </bpmn2:SequenceFlow>
</xmi:XMI>
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Best regards,
Michael

[lisama]

It means that there is an element in the xml file which isn't part of the Activiti Designer Palette. You can correct it by using the Ecplise Import option instead of the "Import BPMN 2.0 XML file" option.
Eclipse will then import it as an xml file and won't try to convert it to a diagram, you will than have the chance to correct the 'mistake' by changing the object to a user Task for example.

Would also be good to know what version of the Designer you are using. The IntermediateCatchEvent was added to the Palette with the 5.8 release.

[mhw]

Hi,
yes, thanks. It indeed was the intermediateCatchEvent. Using 5.7 so running in this issue  ops: Will update now.

Thanks for the help.

BRM

[trademak]

Hi,

I've committed a bug fix to trunk for this.
On the Activiti wiki you can find details about how to create an Activiti Designer version based on trunk.

Best regards,