private void orderAboveSiblings() {
    if (owner == null) {
      return;
    }

    // NOTE: the logic will fail if we have a hierarchy like:
    //       visible root owner
    //          invisible owner
    //              visible dialog
    // However, this is an unlikely scenario for real life apps
    if (owner.isVisible()) {
      // Recursively pop up the windows from the very bottom so that only
      // the very top-most one becomes the main window
      owner.orderAboveSiblings();

      // Order the window to front of the stack of child windows
      final long nsWindowSelfPtr = getNSWindowPtr();
      final long nsWindowOwnerPtr = owner.getNSWindowPtr();
      CWrapper.NSWindow.orderFront(nsWindowOwnerPtr);
      CWrapper.NSWindow.orderWindow(
          nsWindowSelfPtr, CWrapper.NSWindow.NSWindowAbove, nsWindowOwnerPtr);
    }

    applyWindowLevel(target);
  }
  @Override // PlatformWindow
  public void setVisible(boolean visible) {
    final long nsWindowPtr = getNSWindowPtr();

    // Configure stuff
    updateIconImages();
    updateFocusabilityForAutoRequestFocus(false);

    boolean wasMaximized = isMaximized();

    if (visible && target.isLocationByPlatform()) {
      nativeSetNSWindowLocationByPlatform(getNSWindowPtr());
    }

    // Actually show or hide the window
    LWWindowPeer blocker = (peer == null) ? null : peer.getBlocker();
    if (blocker == null || !visible) {
      // If it ain't blocked, or is being hidden, go regular way
      if (visible) {
        CWrapper.NSWindow.makeFirstResponder(nsWindowPtr, contentView.getAWTView());

        boolean isPopup = (target.getType() == Window.Type.POPUP);
        if (isPopup) {
          // Popups in applets don't activate applet's process
          CWrapper.NSWindow.orderFrontRegardless(nsWindowPtr);
        } else {
          CWrapper.NSWindow.orderFront(nsWindowPtr);
        }

        boolean isKeyWindow = CWrapper.NSWindow.isKeyWindow(nsWindowPtr);
        if (!isKeyWindow) {
          CWrapper.NSWindow.makeKeyWindow(nsWindowPtr);
        }
      } else {
        // immediately hide the window
        CWrapper.NSWindow.orderOut(nsWindowPtr);
        // process the close
        CWrapper.NSWindow.close(nsWindowPtr);
      }
    } else {
      // otherwise, put it in a proper z-order
      CWrapper.NSWindow.orderWindow(
          nsWindowPtr,
          CWrapper.NSWindow.NSWindowBelow,
          ((CPlatformWindow) blocker.getPlatformWindow()).getNSWindowPtr());
    }
    this.visible = visible;

    // Manage the extended state when showing
    if (visible) {
      // Apply the extended state as expected in shared code
      if (target instanceof Frame) {
        if (!wasMaximized && isMaximized()) {
          // setVisible could have changed the native maximized state
          deliverZoom(true);
        } else {
          int frameState = ((Frame) target).getExtendedState();
          if ((frameState & Frame.ICONIFIED) != 0) {
            // Treat all state bit masks with ICONIFIED bit as ICONIFIED state.
            frameState = Frame.ICONIFIED;
          }
          switch (frameState) {
            case Frame.ICONIFIED:
              CWrapper.NSWindow.miniaturize(nsWindowPtr);
              break;
            case Frame.MAXIMIZED_BOTH:
              maximize();
              break;
            default: // NORMAL
              unmaximize(); // in case it was maximized, otherwise this is a no-op
              break;
          }
        }
      }
    }

    nativeSynthesizeMouseEnteredExitedEvents();

    // Configure stuff #2
    updateFocusabilityForAutoRequestFocus(true);

    // Manage parent-child relationship when showing
    final ComponentAccessor acc = AWTAccessor.getComponentAccessor();

    if (visible) {
      // Order myself above my parent
      if (owner != null && owner.isVisible()) {
        CWrapper.NSWindow.orderWindow(
            nsWindowPtr, CWrapper.NSWindow.NSWindowAbove, owner.getNSWindowPtr());
        applyWindowLevel(target);
      }

      // Order my own children above myself
      for (Window w : target.getOwnedWindows()) {
        final Object p = acc.getPeer(w);
        if (p instanceof LWWindowPeer) {
          CPlatformWindow pw = (CPlatformWindow) ((LWWindowPeer) p).getPlatformWindow();
          if (pw != null && pw.isVisible()) {
            CWrapper.NSWindow.orderWindow(
                pw.getNSWindowPtr(), CWrapper.NSWindow.NSWindowAbove, nsWindowPtr);
            pw.applyWindowLevel(w);
          }
        }
      }
    }

    // Deal with the blocker of the window being shown
    if (blocker != null && visible) {
      // Make sure the blocker is above its siblings
      ((CPlatformWindow) blocker.getPlatformWindow()).orderAboveSiblings();
    }
  }