Bug 90415 [Contributions] NPE in ActionContributionItem.update when trying to set accelerator in menu
Exception in thread "main" java.lang.NullPointerException at org.eclipse.jface.action.ActionContributionItem.update(ActionContributionItem.java:749) at org.eclipse.jface.action.ActionContributionItem.fill(ActionContributionItem.java:281) at org.eclipse.jface.action.MenuManager.update(MenuManager.java:627) at org.eclipse.jface.action.MenuManager.update(MenuManager.java:549) at org.eclipse.jface.action.MenuManager.createMenuBar(MenuManager.java:158) at org.eclipse.jface.window.ApplicationWindow.createTrimWidgets(ApplicationWindow.java:332) at org.eclipse.jface.window.ApplicationWindow.configureShell(ApplicationWindow.java:320) at org.eclipse.jface.window.Window.createShell(Window.java:483) at org.eclipse.jface.window.Window.create(Window.java:417) at org.eclipse.jface.window.Window.open(Window.java:770) at MenuActionTest.main(MenuActionTest.java:76)
bundles/org.eclipse.jface/src/org/eclipse/jface/action/ActionContributionItem.java
public boolean isVisible() {
        return super.isVisible() && isCommandActive();
    }
    /**
     * Sets the presentation mode, which is the bitwise-or of the 
     * <code>MODE_*</code> constants.
     * 
     * @param mode the presentation mode settings
     * 
     * @since 3.0
     */
    public void setMode(int mode) {
        this.mode = mode;
        update();
    }
    /**
     * The action item implementation of this <code>IContributionItem</code>
     * method calls <code>update(null)</code>.
     */
    public final void update() {
        update(null);
    }
    /**
     * Synchronizes the UI with the given property.
     *
     * @param propertyName the name of the property, or <code>null</code> meaning all applicable
     *   properties 
     */
    public void update(String propertyName) {
        if (widget != null) {