[jboss-user] [JBoss Seam] - @DataModel problem

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I have a simple bean with DataModel and DataModelSelection

  | @Stateful
  | @Name("toolbar")
  | @Scope(ScopeType.SESSION)
  | public class ToolbarImpl implements Toolbar {
  | 	 
  |        ...................
  | 
  | 	@DataModel
  | 	public List<ProcessDefinition> getProcessDefinitions() {
  | 		return processDefinitions;
  | 	}
  | 	
  | 	@DataModelSelection("processDefinitions")
  | 	private ProcessDefinition selectedProcess = null;
  | 
  | 	public String createProcess() {
  | 		
  | 		System.out.println(selectedProcess + " process started");
  | 		return null;
  | 	}
  | 	
  | }
  | 
And a simple page

  | <rich:dataTable value="#{processDefinitions}" var="process">
  |  	   				<rich:column>
  |  	   					<h:commandLink value="#{process.description}" action="#{toolbar.createProcess}" style="font-size:14px">
  | 								<h:graphicImage value="#{process.processIcon}" style="width:42px;height:42px;border:0"	align="middle"/>
  | 						</h:commandLink>
  |  	   				</rich:column>
  |  	   			</rich:dataTable>
  | 

and a simple exception


  | Caused by java.lang.IllegalArgumentException with message: "Could not invoke method by reflection: ToolbarImpl.getProcessDefinitions() with parameters: (java.util.ArrayList) on: virtprofstud.ToolbarImpl"
  | 

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