src/java.desktop/share/classes/sun/java2d/marlin/DCurve.java

*** 54,84 ****
      void set(double x1, double y1,
               double x2, double y2,
               double x3, double y3,
               double x4, double y4)
      {
!         ax = 3.0d * (x2 - x3) + x4 - x1;
!         ay = 3.0d * (y2 - y3) + y4 - y1;
!         bx = 3.0d * (x1 - 2.0d * x2 + x3);
!         by = 3.0d * (y1 - 2.0d * y2 + y3);
!         cx = 3.0d * (x2 - x1);
!         cy = 3.0d * (y2 - y1);
          dx = x1;
          dy = y1;
          dax = 3.0d * ax; day = 3.0d * ay;
          dbx = 2.0d * bx; dby = 2.0d * by;
      }
  
      void set(double x1, double y1,
               double x2, double y2,
               double x3, double y3)
      {
          ax = 0.0d; ay = 0.0d;
!         bx = x1 - 2.0d * x2 + x3;
!         by = y1 - 2.0d * y2 + y3;
!         cx = 2.0d * (x2 - x1);
!         cy = 2.0d * (y2 - y1);
          dx = x1;
          dy = y1;
          dax = 0.0d; day = 0.0d;
          dbx = 2.0d * bx; dby = 2.0d * by;
      }
--- 54,90 ----
      void set(double x1, double y1,
               double x2, double y2,
               double x3, double y3,
               double x4, double y4)
      {
!         final double dx32 = 3.0d * (x3 - x2);
!         final double dy32 = 3.0d * (y3 - y2);
!         final double dx21 = 3.0d * (x2 - x1);
!         final double dy21 = 3.0d * (y2 - y1);
!         ax = (x4 - x1) - dx32;
!         ay = (y4 - y1) - dy32;
!         bx = (dx32 - dx21);
!         by = (dy32 - dy21);
!         cx = dx21;
!         cy = dy21;
          dx = x1;
          dy = y1;
          dax = 3.0d * ax; day = 3.0d * ay;
          dbx = 2.0d * bx; dby = 2.0d * by;
      }
  
      void set(double x1, double y1,
               double x2, double y2,
               double x3, double y3)
      {
+         final double dx21 = (x2 - x1);
+         final double dy21 = (y2 - y1);
          ax = 0.0d; ay = 0.0d;
!         bx = (x3 - x2) - dx21;
!         by = (y3 - y2) - dy21;
!         cx = 2.0d * dx21;
!         cy = 2.0d * dy21;
          dx = x1;
          dy = y1;
          dax = 0.0d; day = 0.0d;
          dbx = 2.0d * bx; dby = 2.0d * by;
      }