src/java.desktop/windows/classes/sun/awt/windows/WComponentPeer.java

rev 60071 : 8211999: Window positioning bugs due to overlapping GraphicsDevice bounds (Windows/HiDPI)
Reviewed-by: XXX

*** 531,549 ****
--- 531,561 ----
          }
      }
  
      @Override
      public boolean updateGraphicsData(GraphicsConfiguration gc) {
+         var old = getGraphicsConfiguration().getDefaultTransform();
          winGraphicsConfig = (Win32GraphicsConfig)gc;
+         if (gc != null && !old.equals(gc.getDefaultTransform())) {
+             syncBounds(); // the bound of the peer depends on the DPI
+         }
          try {
              replaceSurfaceData();
          } catch (InvalidPipeException e) {
              // REMIND : what do we do if our surface creation failed?
          }
          return false;
      }
  
+     /**
+      * Make sure that the native peer's coordinates are in sync with the target.
+      */
+     void syncBounds(){
+         Rectangle r = ((Component)target).getBounds();
+         setBounds(r.x, r.y, r.width, r.height, SET_BOUNDS);
+     }
+ 
      //This will return null for Components not yet added to a Container
      @Override
      public ColorModel getColorModel() {
          GraphicsConfiguration gc = getGraphicsConfiguration();
          if (gc != null) {