[news.eclipse.tools] About classloader: NoClassDefFound with two dependa

["Joonas Reynders" <joonas.reynders@xxxxxxxxxxxxxxxxxxx>]

I am implementing a graphical editor using GEF and I get a NoClassDefFound
exception when I try to set my EditPart factory. I have created two plug-in
projects (core and editor). I have generalized pars of my implementation to
be reused in future editors.

The Problem I have goes as follows (This is taken from my Graphical Editor)

    /**

     * @see
org.eclipse.gef.ui.parts.GraphicalEditor#configureGraphicalViewer()

     */

    protected void configureGraphicalViewer() {

        super.configureGraphicalViewer();



        GraphicalViewer viewer = getGraphicalViewer();



        viewer.setRootEditPart(new FreeformGraphicalRootEditPart());



        ((FigureCanvas) viewer.getControl()).setScrollBarVisibility(

            FigureCanvas.ALWAYS);



        viewer.setEditPartFactory(new ControlFactory()); (This line causes
the problem)

        viewer.setContextMenuProvider(contextMenu);

    }



InternalPlatform Class fails trying to create the ControlFactory() class. I
have an abstract base class for the Graphical editor (in the core plugin)
and the ControlFactory is declared (implements the EditPartFactory
interface) in the editor plugin.



Can anyone help?