src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java

*** 676,686 ****
      @Override  // PlatformWindow
      public void toFront() {
          final long nsWindowPtr = getNSWindowPtr();
          LWCToolkit lwcToolkit = (LWCToolkit) Toolkit.getDefaultToolkit();
          Window w = DefaultKeyboardFocusManager.getCurrentKeyboardFocusManager().getActiveWindow();
!         if( w != null
                  && ((LWWindowPeer)w.getPeer()).getPeerType() == LWWindowPeer.PeerType.EMBEDDED_FRAME
                  && !lwcToolkit.isApplicationActive()) {
              lwcToolkit.activateApplicationIgnoringOtherApps();
          }
          updateFocusabilityForAutoRequestFocus(false);
--- 676,686 ----
      @Override  // PlatformWindow
      public void toFront() {
          final long nsWindowPtr = getNSWindowPtr();
          LWCToolkit lwcToolkit = (LWCToolkit) Toolkit.getDefaultToolkit();
          Window w = DefaultKeyboardFocusManager.getCurrentKeyboardFocusManager().getActiveWindow();
!         if( w != null && w.getPeer() != null
                  && ((LWWindowPeer)w.getPeer()).getPeerType() == LWWindowPeer.PeerType.EMBEDDED_FRAME
                  && !lwcToolkit.isApplicationActive()) {
              lwcToolkit.activateApplicationIgnoringOtherApps();
          }
          updateFocusabilityForAutoRequestFocus(false);