modules/javafx.graphics/src/main/java/com/sun/javafx/tk/quantum/WindowStage.java

*** 875,885 ****
          } else {
              removeActiveWindow(this);
          }
      }
  
!     void setEnabled(boolean enabled) {
          if ((owner != null) && (owner instanceof WindowStage)) {
              ((WindowStage) owner).setEnabled(enabled);
          }
          /*
           * RT-17588 - exit if stage is closed from under us as
--- 875,886 ----
          } else {
              removeActiveWindow(this);
          }
      }
  
!     @Override
!     public void setEnabled(boolean enabled) {
          if ((owner != null) && (owner instanceof WindowStage)) {
              ((WindowStage) owner).setEnabled(enabled);
          }
          /*
           * RT-17588 - exit if stage is closed from under us as
*** 895,904 ****
--- 896,910 ----
                  appletWindow.assertStageOrder();
              }
          }
      }
  
+     @Override
+     public long getRawHandle() {
+        return platformWindow.getRawHandle(); 
+     }
+ 
      // Note: This method is required to workaround a glass issue mentioned in RT-12607
      protected void requestToFront() {
          if (platformWindow != null) {
              platformWindow.toFront();
              platformWindow.requestFocus();