Merge pull request #932 from Stefterv/fix-#931

Fix Sketch Window Resizing Issues with Java2D Renderer on Windows

core/src/processing/awt/PSurfaceAWT.java

@@ -227,7 +227,7 @@ public class PSurfaceAWT extends PSurfaceNone {
   }
 
 
-  synchronized protected void render() {
+  protected void render() {
     if (canvas.isDisplayable() &&
         graphics.image != null) {
       if (canvas.getBufferStrategy() == null) {