@Override
protected void processReferences(final WorkItem designItem) {
if (designItem.getDesignItem() instanceof Diagram) {
DiagramElementVisitor dev = new DiagramElementVisitor();
dev.visit((Diagram) designItem.getDesignItem(), new VisitorAction() {
public void visit(DiagramElement de) {
if (de instanceof IdentifiableDiagramElement) {
IdentifiableDiagramElement rde = (IdentifiableDiagramElement) de;
if (rde.getID().startsWith(PROJECT_JAVA_CLASS)) {
createProjectJavaClassReference(designItem, rde);