Bug 320989 NPE in CocoaUIHandler
This happened in my Tutorial-RCP when opening a second window and hitting CMD+Q. !ENTRY org.eclipse.e4.ui.workbench 4 0 2010-07-27 12:18:00.823 !MESSAGE Internal Error !STACK 0 java.lang.NullPointerException at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.findAction(CocoaUIHandler.java:662) at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.runAction(CocoaUIHandler.java:554) at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.quitMenuItemSelected(CocoaUIHandler.java:725) at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.actionProc(CocoaUIHandler.java:748) at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method) at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:4582) at org.eclipse.swt.widgets.Display.applicationProc(Display.java:4659) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method) at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:115) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3274) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:713)
bundles/org.eclipse.e4.ui.workbench.renderers.swt.cocoa/src/org/eclipse/e4/ui/workbench/renderers/swt/cocoa/CocoaUIHandler.java
MWindow window = app.getSelectedElement();
		if (window != null) {
			MMenu topMenu = window.getMainMenu();
			MMenuItem item = findAction(actionId, topMenu);
			if (item != null && item.isEnabled()) {
				try {
					NSMenu mainMenu = NSApplication.sharedApplication()
							.mainMenu();
					NSMenuItem mainMenuItem = (NSMenuItem) invokeMethod(
							NSMenu.class, mainMenu,
							"itemAtIndex", new Object[] { wrapPointer(0) }); 
					NSMenu appMenu = mainMenuItem.submenu();
					NSMenuItem aboutMenuItem = (NSMenuItem) invokeMethod(
							NSMenu.class,
							appMenu,
							"itemAtIndex", new Object[] { wrapPointer(kAboutMenuItem) }); 
					NSMenuItem prefMenuItem = (NSMenuItem) invokeMethod(
							NSMenu.class,
							appMenu,
							"itemAtIndex", new Object[] { wrapPointer(kPreferencesMenuItem) }); 
					try {
						prefMenuItem.setEnabled(false);
						aboutMenuItem.setEnabled(false);
						simulateMenuSelection(item);
					} finally {
						prefMenuItem.setEnabled(true);
						aboutMenuItem.setEnabled(true);
					}
				} catch (Exception e) {