src/windows/classes/sun/awt/windows/TranslucentWindowPainter.java

*** 38,47 ****
--- 38,48 ----
  import sun.awt.image.BufImgSurfaceData;
  import sun.java2d.DestSurfaceProvider;
  import sun.java2d.InvalidPipeException;
  import sun.java2d.Surface;
  import sun.java2d.pipe.RenderQueue;
+ import sun.java2d.pipe.BufferedContext;
  import sun.java2d.pipe.hw.AccelGraphicsConfig;
  import sun.java2d.pipe.hw.AccelSurface;
  import sun.security.action.GetPropertyAction;
  
  import static java.awt.image.VolatileImage.*;
*** 308,318 ****
                      final boolean arr[] = { false };
                      final AccelSurface as = (AccelSurface)s;
                      RenderQueue rq = as.getContext().getRenderQueue();
                      rq.lock();
                      try {
!                         as.getContext().validateContext(as);
                          rq.flushAndInvokeNow(new Runnable() {
                              public void run() {
                                  long psdops = as.getNativeOps();
                                  arr[0] = updateWindowAccel(psdops, w, h);
                              }
--- 309,319 ----
                      final boolean arr[] = { false };
                      final AccelSurface as = (AccelSurface)s;
                      RenderQueue rq = as.getContext().getRenderQueue();
                      rq.lock();
                      try {
!                         BufferedContext.validateContext(as);
                          rq.flushAndInvokeNow(new Runnable() {
                              public void run() {
                                  long psdops = as.getNativeOps();
                                  arr[0] = updateWindowAccel(psdops, w, h);
                              }