modules/javafx.graphics/src/main/native-glass/gtk/GlassApplication.cpp

*** 1,7 ****
  /*
!  * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 514,523 ****
--- 514,525 ----
                      gtk_main_do_event(event);
                      break;
                  default:
                      break;
              }
+             // update GTK structures to receive the synchronous changes
+             gdk_display_sync(gdk_display_get_default());
          } catch (jni_exception&) {
          }
      } else {
  
          if (window == gdk_screen_get_root_window(gdk_screen_get_default())) {