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

*** 198,203 ****
--- 198,210 ----
          setBounds(x, y, width, height, SET_BOUNDS);
      }
      public Rectangle getBoundsPrivate() {
          return getBounds();
      }
+ 
+     // TODO: implement it in peers. WLightweightFramePeer may implement lw version.
+     public void emulateActivation(boolean activate) {
+         synthesizeWmActivate(activate);
+     }
+     
+     private native void synthesizeWmActivate(boolean activate);
  }