--- old/src/java.desktop/share/classes/sun/java2d/SurfaceData.java	2015-11-26 18:53:34.000000000 +0400
+++ new/src/java.desktop/share/classes/sun/java2d/SurfaceData.java	2015-11-26 18:53:34.000000000 +0400
@@ -1039,6 +1039,11 @@
      * Performs a copyarea within this surface.  Returns
      * false if there is no algorithm to perform the copyarea
      * given the current settings of the SunGraphics2D.
+     *
+     * @param x the x coordinate of the area in device space
+     * @param y the y coordinate of the area in device space
+     * @param w the width of the area in device space
+     * @param h the height of the area in device space
      */
     public boolean copyArea(SunGraphics2D sg2d,
                             int x, int y, int w, int h, int dx, int dy)