Bug 119494 [Workbench] dangerous uses of "new GC(Display)"
bundles/org.eclipse.jface/src/org/eclipse/jface/action/ActionContributionItem.java
* Remembers all images in use by this contribution item
     */
    private LocalResourceManager imageManager;
    
    /**
     * Listener for SWT button widget events.
     */
    private Listener buttonListener;
    /**
     * Listener for SWT menu item widget events.
     */
    private Listener menuItemListener;
    /**
     * Listener for action property change notifications.
     */
    private final IPropertyChangeListener propertyListener = new IPropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent event) {
            actionPropertyChange(event);
        }
    };
    /**
     * Listener for SWT tool item widget events.
     */
    private Listener toolItemListener;
    /**
     * The widget created for this item; <code>null</code>
     * before creation and after disposal.
     */
    private Widget widget = null;
    /**