Troubleshooting contributed presentations

I am trying to contribute my own attribute presentation to the WEB UI in RTC 3.0.

I have plugin
com.ibm.support.linkAttribute
in which I have files Star.js and Star.css (in the root of the plugin).

Star.js declares and provides.
com.ibm.support.server.linkAttributePresentation.Star

The plugin.xml is:

<extension

         point="com.ibm.team.workitem.service.editorPresentations">

      <editorPresentation

            id="com.ibm.support.linkAttributePresentation.editorPresentation1"

            needsAttribute="true"

            widget="com.ibm.support.server.linkAttributePresentation.Star">

      </editorPresentation>

   </extension>

   <extension point="net.jazz.ajax.cssBindingSets">

      <cssBindingSet id="com.ibm.support.linkAttributePresentation.CSSBindingSet">         

         <cssBinding jsModule="com.ibm.support.server.linkAttributePresentation.Star">

               <cssModule path="/Star.css"/>

         </cssBinding>

      </cssBindingSet>

   </extension>

	<extension point="net.jazz.ajax.webBundles">

        <prerequisites>

            <requiredWebBundle id="net.jazz.ajax"/>

        </prerequisites>

    </extension>

Unfortunately this does not work. The plugin is up and running, but the editor presentation does not appear anywhere. I expect the problem is with paths. How can I troubleshoot this plugin?

The RCP client works fine - I configure the process from there, the presentation id is the same.