src/java.desktop/macosx/classes/sun/java2d/opengl/CGLSurfaceData.java

*** 36,45 ****
--- 36,47 ----
  import sun.java2d.SunGraphics2D;
  import sun.java2d.SurfaceData;
  
  import sun.lwawt.macosx.CPlatformView;
  
+ import static sun.java2d.opengl.OGLContext.OGLContextCaps.CAPS_EXT_LCD_SHADER;
+ 
  public abstract class CGLSurfaceData extends OGLSurfaceData {
  
      protected final int scale;
      protected final int width;
      protected final int height;
*** 340,349 ****
--- 342,363 ----
              offscreenImage = image;
              initSurface(this.width, this.height);
          }
  
          @Override
+         public boolean canRenderLCDText(SunGraphics2D sg2d) {
+             // relax the condition to render the lcd text
+             // by removal the transparency check, because
+             // we have to create translucent buffers due to
+             // shaped windows support on macosx.
+             return
+                 getOGLGraphicsConfig().isCapPresent(CAPS_EXT_LCD_SHADER) &&
+                 sg2d.compositeState <= SunGraphics2D.COMP_ISCOPY &&
+                 sg2d.paintState <= SunGraphics2D.PAINT_OPAQUECOLOR;
+         }
+ 
+         @Override
          public SurfaceData getReplacement() {
              return restoreContents(offscreenImage);
          }
  
          @Override