Bug 204788 [Contributions] Second context menu created from MenuManager does not show
Build ID: I20070621-1340 Steps To Reproduce: 1. Create a MenuManager m with some menu items. 2. Call c.setMenu(m.createContextMenu(c)) on some Control c. 3. Observe that right-clicking on c produces the menu. 4. Dispose the menu. 5. Repeat step 2. (Alternatively, install m on a different control.) 6. The menu now doesn't appear. More information: I'm using Linux/GTK. The debugger tells me that the menu is created and handleAboutToShow() is called. I can't see a problem in the Java code, but nothing appears on the screen. Maybe something is wrong in the native code? If I use a different MenuManager to create the second menu, it works fine.
bundles/org.eclipse.jface/src/org/eclipse/jface/action/MenuManager.java
return menu;
    }
    /**
     * Creates and returns an SWT menu bar control for this menu,
     * for use in the given <code>Decorations</code>, and installs all registered
     * contributions. Does not create a new control if one already exists.
     *
     * @param parent the parent decorations
     * @return the menu control
     * @since 2.1
     */
    public Menu createMenuBar(Decorations parent) {
        if (!menuExist()) {
            menu = new Menu(parent, SWT.BAR);
            update(false);
        }
        return menu;
    }
    /**
     * Creates and returns an SWT menu bar control for this menu, for use in the
     * given <code>Shell</code>, and installs all registered contributions. Does not
     * create a new control if one already exists. This implementation simply calls
     * the <code>createMenuBar(Decorations)</code> method
     *
     * @param parent the parent decorations
     * @return the menu control
     * @deprecated use <code>createMenuBar(Decorations)</code> instead.
     */
    public Menu createMenuBar(Shell parent) {
        return createMenuBar((Decorations) parent);