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
if (action != null) {
                String commandId = action.getActionDefinitionId();
                ExternalActionManager.ICallback callback = ExternalActionManager
                        .getInstance().getCallback();
                if ((callback != null) && (commandId != null)) {
                    callback.addPropertyChangeListener(commandId,
                            actionTextListener);
                }
            }
        }
    }
    /**
     * Returns the action associated with this contribution item.
     *
     * @return the action
     */
    public IAction getAction() {
        return action;
    }
    /**
     * Returns the listener for SWT button widget events.
     * 
     * @return a listener for button events
     */
    private Listener getButtonListener() {
        if (buttonListener == null) {
            buttonListener = new Listener() {
                public void handleEvent(Event event) {
                    switch (event.type) {
                    case SWT.Dispose: