Bug 94456 [Undo] - Resource Navigator not showing workspace undo actions
The Resource Navigator is not showing the workspace undo actions. Package Explorer is correctly working. Need to look at the difference in the way the action handlers are set up.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/ResourceNavigator.java
public TreeViewer getTreeViewer() {
        return viewer;
    }
    /**
     * Returns the shell to use for opening dialogs.
     * Used in this class, and in the actions.
     * 
     * @return the shell
     * @deprecated use getViewSite().getShell()
     */
    public Shell getShell() {
        return getViewSite().getShell();
    }
    /**
     * Returns the message to show in the status line.
     *
     * @param selection the current selection
     * @return the status line message
     * @since 2.0
     */
    protected String getStatusLineMessage(IStructuredSelection selection) {
        if (selection.size() == 1) {
            Object o = selection.getFirstElement();
            if (o instanceof IResource) {
                return ((IResource) o).getFullPath().makeRelative().toString();
            } else {
                return ResourceNavigatorMessages.ResourceNavigator_oneItemSelected;
            }
        }
        if (selection.size() > 1) {