[jboss-user] [JBoss jBPM] - Delegate config map of lists

[kevhender]

Hi,

I'm trying to use a map of lists inside of an ActionHandler, but I am not able to correctly configure the list; I get an error saying that it cannot convert a String to a List.  Here is the config:



  | ...
  | <action name="my-action" class="com.sample.action.MyActionHandler">
  | 	<fields>
  | 		<entry>
  | 			<key>one</key>
  | 			<value>
  | 				<list>
  | 					<element>one-1</element>
  | 					<element>one-2</element>
  | 				</list>
  | 			</value>
  | 		</entry>
  | 		<entry>
  | 			<key>two</key>
  | 			<value>
  | 				<list>
  | 					<element>two-1</element>
  | 					<element>two-2</element>
  | 				</list>
  | 			</value>
  | 		</entry>
  | 	</fields>
  | </action>
  | ...
  | 



  | 
  | public class MyActionHandler implements ActionHandler {
  | 
  | 	private Map<String, List<String>> fields;
  | 	
  | 	@Override
  | 	public void execute(ExecutionContext context) throws Exception {
  | 		...
  | 	}
  | 
  | 	public Map<String, List<String>> getFields() {
  | 		return fields;
  | 	}
  | 
  | 	public void setFields(Map<String, List<String>> fields) {
  | 		this.fields = fields;
  | 	}
  | 	
  | }
  | 
  | 

Here is the stack trace:



  | 16:52:38,732 [main] ERROR GraphElement : action threw exception: java.lang.String cannot be cast to java.util.List
  | java.lang.ClassCastException: java.lang.String cannot be cast to java.util.List
  | 	at com.sample.action.MysActionHandler.execute(CheckRequiredFieldsActionHandler.java:17)
  | 	at org.jbpm.graph.def.Action.execute(Action.java:122)
  | 	at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:259)
  | 	at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:215)
  | 	at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:185)
  | 	at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:169)
  | 	at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:452)
  | 	at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:393)
  | 	at com.sample.SimpleProcessTest.executeTask(SimpleProcessTest.java:103)
  | 
  | 

Does anyone know why this won't work?  Thanks...

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