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

*** 100,110 ****
  import javax.swing.UIManager;
  
  import com.apple.laf.AquaMenuBarUI;
  import sun.awt.AWTAccessor;
  import sun.awt.AppContext;
- import sun.awt.CGraphicsConfig;
  import sun.awt.CGraphicsDevice;
  import sun.awt.LightweightFrame;
  import sun.awt.PlatformGraphicsInfo;
  import sun.awt.SunToolkit;
  import sun.awt.datatransfer.DataTransferer;
--- 100,109 ----
*** 477,487 ****
                  .getXResolution();
      }
  
      @Override
      public Insets getScreenInsets(final GraphicsConfiguration gc) {
!         return ((CGraphicsConfig) gc).getDevice().getScreenInsets();
      }
  
      @Override
      public void sync() {
          // flush the OGL pipeline (this is a no-op if OGL is not enabled)
--- 476,490 ----
                  .getXResolution();
      }
  
      @Override
      public Insets getScreenInsets(final GraphicsConfiguration gc) {
!         GraphicsDevice gd = gc.getDevice();
!         if (!(gd instanceof CGraphicsDevice)) {
!             return super.getScreenInsets(gc);
!         }
!         return ((CGraphicsDevice)gd).getScreenInsets();
      }
  
      @Override
      public void sync() {
          // flush the OGL pipeline (this is a no-op if OGL is not enabled)