src/java.desktop/share/classes/sun/java2d/pipe/AAShapePipe.java

*** 125,145 ****
          renderTiles(sg, computeBBox(ux1, uy1, ux2, uy2), aatg, abox);
      }
  
      private static byte[] theTile;
  
!     private synchronized static byte[] getAlphaTile(int len) {
          byte[] t = theTile;
          if (t == null || t.length < len) {
              t = new byte[len];
          } else {
              theTile = null;
          }
          return t;
      }
  
!     private synchronized static void dropAlphaTile(byte[] t) {
          theTile = t;
      }
  
      public void renderPath(SunGraphics2D sg, Shape s, BasicStroke bs) {
          boolean adjust = (bs != null &&
--- 125,145 ----
          renderTiles(sg, computeBBox(ux1, uy1, ux2, uy2), aatg, abox);
      }
  
      private static byte[] theTile;
  
!     private static synchronized byte[] getAlphaTile(int len) {
          byte[] t = theTile;
          if (t == null || t.length < len) {
              t = new byte[len];
          } else {
              theTile = null;
          }
          return t;
      }
  
!     private static synchronized void dropAlphaTile(byte[] t) {
          theTile = t;
      }
  
      public void renderPath(SunGraphics2D sg, Shape s, BasicStroke bs) {
          boolean adjust = (bs != null &&