topic Re: Can't run activiti WF Alfresco 4.2.c, NullPointerException in Alfresco Archive

Can't run activiti WF Alfresco 4.2.c, NullPointerException

koopa — Wed, 20 Feb 2013 09:17:02 GMT

After a succesful deploy of my custom Workflow, when I start it from Share it says it cannot start.Share log says:<blockcode>09:53:12,615 ERROR [org.springframework.extensions.webscripts.AbstractRuntime] Exception from executeScript - redirecting to status template error: 01200000 Wrapped Exce

Re: Can't run activiti WF Alfresco 4.2.c, NullPointerException

koopa — Wed, 20 Feb 2013 15:20:24 GMT

It seems like it'the same error presented in these threads, <a href="http://forums.alfresco.com/forum/developer-discussions/content-modeling/constraints-create-bug-01312013-1332" >here</a> and <a href="http://forums.alfresco.com/forum/end-user-discussions/alfresco-share/redering-custom-model-broken-42c-01282013-1702">here</a>. Ther is also an open <a href="https://issues.alfresco.com/jira/browse/ALF-17730?page=com.googlecode.jira-suite-utilities:transitions-summary-tabpanel">issue on JIRA</a>.
But I am a little surprised because in my case I'm not using custom model at all. Simply the workflowModel already living in alfresco/workflow.
Anyone? In the meantime I'll try to figure it out how to customize the form, maybe via share-custom-config file. Don't know if it's the right way.

Re: Can't run activiti WF Alfresco 4.2.c, NullPointerException

mstein — Wed, 20 Feb 2013 16:23:14 GMT

You shouldn't need the model property if you're using the oob model, they are already there. Can you post your workflow.xml?

Re: Can't run activiti WF Alfresco 4.2.c, NullPointerException

koopa — Thu, 21 Feb 2013 07:40:00 GMT

Thank you mstein for the answer, this is the process definition:
<blockcode>
<?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" xmlnsmgdc="http://www.omg.org/spec/DD/20100524/DC" xmlnsmgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
<process id="EPsendMail" name="Processo invio mail E-Project" isExecutable="true">
    <startEvent id="alfrescoStart" name="Alfresco start" activiti:formKey="wf:submitAdhocTask"></startEvent>
    <serviceTask id="sendMail" name="Alfresco Mail Task" activiti:class="org.alfresco.repo.workflow.activiti.script.AlfrescoScriptDelegate">
      <extensionElements>
        <activiti:field name="script">
          <activiti:string>var mail = actions.create("mail");
mail.execute(bpm_package);</activiti:string>
        </activiti:field>
        <activiti:field name="mail.parameters.to">
          <activiti:string>me@secservizi.it</activiti:string>
        </activiti:field>
        <activiti:field name="mail.parameters.from">
          <activiti:string>koopa@localalfresco.it</activiti:string>
        </activiti:field>
        <activiti:field name="mail.parameters.subject">
          <activiti:string>Bim bum bam</activiti:string>
        </activiti:field>
        <activiti:field name="mail.parameters.html">
          <activiti:string>Try try try</activiti:string>
        </activiti:field>
      </extensionElements>
    </serviceTask>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow1" sourceRef="sendMail" targetRef="endevent1"></sequenceFlow>
    <sequenceFlow id="flow2" sourceRef="alfrescoStart" targetRef="sendMail"></sequenceFlow>
</process>
<bpmndi:BPMNDiagram id="BPMNDiagram_EPsendMail">
    <bpmndi:BPMNPlane bpmnElement="EPsendMail" id="BPMNPlane_EPsendMail">
      <bpmndi:BPMNShape bpmnElement="alfrescoStart" id="BPMNShape_alfrescoStart">
        <omgdc:Bounds height="35.0" width="35.0" x="180.0" y="310.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="sendMail" id="BPMNShape_sendMail">
        <omgdc:Bounds height="55.0" width="105.0" x="260.0" y="300.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="420.0" y="310.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="365.0" y="327.0"></omgdi:waypoint>
        <omgdi:waypoint x="420.0" y="327.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="215.0" y="327.0"></omgdi:waypoint>
        <omgdi:waypoint x="260.0" y="327.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</definitions>
</blockcode>
as you can see it is absolutely straightforward. I simplified it the most just to see if I can use it. But I can't even trying to start a wf instance from the workflow console.

Re: Can't run activiti WF Alfresco 4.2.c, NullPointerException

koopa — Thu, 21 Feb 2013 09:03:32 GMT

I tried to start from a clean space, so I started a new tomcat with fresh alfresco and share war on a fresh new db but the result is the same. Created process with eclipse activiti designer, created my custom context file to make the new process visible, linking it to alfresco/workflow/workflowModel.xml, started tomcat, launched wf via UI… fail.
But I did a step forward, I can now start it from the wf console and really see the detail wf form once started. This is my new baby-written 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="http://www.activiti.org/test">
  <process id="semplice" name="Processo di prova" isExecutable="true">
    <startEvent id="start" name="Alfresco start" activiti:formKey="wf:submitAdhocTask"></startEvent>
    <userTask id="userTask" name="Alfresco User Task" activiti:candidateGroups="commerciali" activiti:formKey="wf:adhocTask"></userTask>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow1" sourceRef="userTask" targetRef="endevent1"></sequenceFlow>
    <sequenceFlow id="flow2" sourceRef="start" targetRef="userTask"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_semplice">
    <bpmndi:BPMNPlane bpmnElement="semplice" id="BPMNPlane_semplice">
      <bpmndi:BPMNShape bpmnElement="start" id="BPMNShape_start">
        <omgdc:Bounds height="35.0" width="35.0" x="140.0" y="290.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="userTask" id="BPMNShape_userTask">
        <omgdc:Bounds height="55.0" width="105.0" x="220.0" y="280.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="380.0" y="290.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="325.0" y="307.0"></omgdi:waypoint>
        <omgdi:waypoint x="380.0" y="307.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="175.0" y="307.0"></omgdi:waypoint>
        <omgdi:waypoint x="220.0" y="307.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>
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Re: Can't run activiti WF Alfresco 4.2.c, NullPointerException

koopa — Thu, 21 Feb 2013 13:44:00 GMT

Copy-Pasted both processes on 4.2.b and they work.

Re: Can't run activiti WF Alfresco 4.2.c, NullPointerException

bprado — Fri, 22 Feb 2013 19:48:00 GMT

I had exactly the same problem. Same solution as well, thank you.

Re: Can't run activiti WF Alfresco 4.2.c, NullPointerException

nyorai — Sun, 07 Jul 2013 21:09:45 GMT

I had exactly the same problem, just starting out learning Alfresco and spent a whole weekend scratching my head. Turns out I wasn't doing anything wrong after all! 4.2b works fine.