--- old/modules/javafx.graphics/src/main/native-glass/gtk/glass_window.cpp	2017-02-20 11:39:47.568684606 +0300
+++ new/modules/javafx.graphics/src/main/native-glass/gtk/glass_window.cpp	2017-02-20 11:39:47.460684609 +0300
@@ -1176,8 +1176,7 @@
         if (windowChangesMask & CWY) {
             newY = windowChanges->y;
         }
-
-        gtk_window_move(GTK_WINDOW(gtk_widget), newX, newY);
+        gdk_window_move(gdk_window, newX, newY);
     }
 
     if (windowChangesMask & (CWWidth | CWHeight)) {
@@ -1198,7 +1197,7 @@
             geom.min_height = geom.max_height = newHeight;
             gtk_window_set_geometry_hints(GTK_WINDOW(gtk_widget), NULL, &geom, hints);
         }
-        gtk_window_resize(GTK_WINDOW(gtk_widget), newWidth, newHeight);
+        gdk_window_resize(gdk_window, newWidth, newHeight);
     }
 }