[jboss-user] [jBPM] - BPMN2 Designer Stuck loading after adding custom work item definition

[Andrew Tan]

Andrew Tan [https://community.jboss.org/people/atan20] created the discussion

"BPMN2 Designer Stuck loading after adding custom work item definition"

To view the discussion, visit: https://community.jboss.org/message/820047#820047

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I am trying to create a simple BPMN2 process that uses a domain specific service. However, after I add a new work item definition in drools-guvnor 5.3.1 and I attempt to create or open an existing bpmn2 process the designer gets stuck on the "Please Wait Loading" screen.

  https://community.jboss.org/servlet/JiveServlet/showImage/2-820047-20876/Desginer+Screen.png  https://community.jboss.org/servlet/JiveServlet/downloadImage/2-820047-20876/450-270/Desginer+Screen.png 

Here is my work item definition:


import org.drools.process.core.datatype.impl.type.ObjectDataType;import org.drools.process.core.datatype.impl.type.StringDataType;
[
  [    "name" : "MyTask",    "parameters" : [     "MyFirstParam" : new StringDataType(),     "MySecondParam" : new StringDataType(),     "MyThirdParam" : new ObjectDataType()    ],    "results" : [        "Result" : new ObjectDataType()    ],    "displayName" : "My Task",    "icon" : "",  ]     ]



Looking at the server.log file of JBoss ESB I can see drools-guvnor loading the custom work item definition, and I am able to build my package in drools guvnor

2013-05-29 18:20:49,120 INFO   com.intalio.web.preprocessing.impl.JbpmPreprocessingUnit com.intalio.web.preprocessing.impl.JbpmPreprocessingUnit (http-127.0.0.1-8080-1) Created file:/opt/jboss-soa-p-5/jboss-as/server/all/tmp/4st5t49-27ns8v-hha869gx-1-hha88mdt-c7/designer.war/stencilsets/bpmn2.0jbpm/view/activity/workitems/Log.svg
2013-05-29 18:20:49,121 INFO   com.intalio.web.preprocessing.impl.JbpmPreprocessingUnit com.intalio.web.preprocessing.impl.JbpmPreprocessingUnit (http-127.0.0.1-8080-1) Created file:/opt/jboss-soa-p-5/jboss-as/server/all/tmp/4st5t49-27ns8v-hha869gx-1-hha88mdt-c7/designer.war/stencilsets/bpmn2.0jbpm/view/activity/workitems/Email.svg
2013-05-29 18:20:49,122 INFO   com.intalio.web.preprocessing.impl.JbpmPreprocessingUnit com.intalio.web.preprocessing.impl.JbpmPreprocessingUnit (http-127.0.0.1-8080-1) Created file:/opt/jboss-soa-p-5/jboss-as/server/all/tmp/4st5t49-27ns8v-hha869gx-1-hha88mdt-c7/designer.war/stencilsets/bpmn2.0jbpm/view/activity/workitems/MyTask.svg



Does anyone have any ideas about why the designer is getting stuck in the "Please Wait Loading" Screen?
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