Bug 73729 [Workbench] [Mac] Dual preferences menu items
On Mac OS X, the preferences menu item appears in the Eclipse menu. This is correct. However, the same menu item that does the same thing also appears in the Window menu, which is correct on other platforms but not the Mac. It should be removed from the Window menu.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
private IWorkbenchAction projectPropertyDialogAction;
    private IWorkbenchAction newWizardAction;
    private IWorkbenchAction newWizardDropDownAction;
    private IWorkbenchAction importResourcesAction;
    
    private IWorkbenchAction exportResourcesAction;
    IWorkbenchAction buildAllAction; 
    private IWorkbenchAction cleanAction;
    private IWorkbenchAction toggleAutoBuildAction;
    MenuManager buildWorkingSetMenu;
    private IWorkbenchAction quickStartAction;
    private IWorkbenchAction tipsAndTricksAction;
    private QuickMenuAction showInQuickMenu;
    private QuickMenuAction newQuickMenu;
    private IWorkbenchAction introAction;
    
    private IWorkbenchAction addBookmarkAction;
    private IWorkbenchAction addTaskAction;
    IWorkbenchAction buildProjectAction;
    private IWorkbenchAction openProjectAction;
    private IWorkbenchAction closeProjectAction;
    
    
    private NewWizardMenu newWizardMenu;
    private IContributionItem pinEditorContributionItem;
    
    
    private StatusLineContributionItem statusLineItem;
    private Preferences.IPropertyChangeListener prefListener;