Bug 70278 [Navigator] Adding a nature with associated natureImage does not refresh folder overlay.
I have a nature with my own natureImage associated with it. I wrote a Wizard to "convert" exisiting projects to contain my nature. Everything works fine, but the overlay icon does not show on the project folder until I do one of the following: 1) restart the workbench 2) "Go into" and back out of the project folder 3) Close and re-open the project Refreshing the project folder does not help, nor does refreshing the workspace. I can see of no way to cause this hard repaint of the folder icon to happen within the API but I could be missing something. If there is a way to do it I would be happy to hear it. ;o)
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/model/WorkbenchContentProvider.java
* Method declared on IContentProvider.
     */
    public void dispose() {
        if (viewer != null) {
            IWorkspace workspace = null;
            Object obj = viewer.getInput();
            if (obj instanceof IWorkspace) {
                workspace = (IWorkspace) obj;
            } else if (obj instanceof IContainer) {
                workspace = ((IContainer) obj).getWorkspace();
            }
            if (workspace != null) {
                workspace.removeResourceChangeListener(this);
            }
        }
        super.dispose();
    }
    /* (non-Javadoc)
     * Method declared on IContentProvider.
     */
    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        super.inputChanged(viewer, oldInput, newInput);
        this.viewer = viewer;
        IWorkspace oldWorkspace = null;
        IWorkspace newWorkspace = null;
        if (oldInput instanceof IWorkspace) {
            oldWorkspace = (IWorkspace) oldInput;
        } else if (oldInput instanceof IContainer) {
            oldWorkspace = ((IContainer) oldInput).getWorkspace();
        }