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

*** 1,7 ****
  /*
!  * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 322,332 ****
          setGraphicsConfig(gc);
          return false;
      }
  
      protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
!         if (getSurfaceData() == null) {
              return null;
          }
          if (fg == null) {
              fg = SystemColor.windowText;
          }
--- 322,333 ----
          setGraphicsConfig(gc);
          return false;
      }
  
      protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
!         SurfaceData surfaceData = getSurfaceData();
!         if (surfaceData == null) {
              return null;
          }
          if (fg == null) {
              fg = SystemColor.windowText;
          }
*** 334,344 ****
              bg = SystemColor.window;
          }
          if (f == null) {
              f = DEFAULT_FONT;
          }
!         return new SunGraphics2D(getSurfaceData(), fg, bg, f);
      }
  
      @Override
      public void setBounds(int x, int y, int w, int h, int op) {
  
--- 335,345 ----
              bg = SystemColor.window;
          }
          if (f == null) {
              f = DEFAULT_FONT;
          }
!         return new SunGraphics2D(surfaceData, fg, bg, f);
      }
  
      @Override
      public void setBounds(int x, int y, int w, int h, int op) {