src/share/classes/sun/java2d/pipe/SpanShapeRenderer.java

@@ -63,11 +63,13 @@
         public void endSequence(Object ctx) {
             comppipe.endSequence(ctx);
         }
     }
 
-    public static class Simple extends SpanShapeRenderer {
+    public static class Simple extends SpanShapeRenderer
+        implements  LoopBasedPipe
+    {
         public Object startSequence(SunGraphics2D sg, Shape s,
                                     Rectangle devR, int[] bbox) {
             return sg;
         }