code: private Window createWindow(String subtitle) {
  		Window w = new Window();
  		w.setWidth(windowWidth);
  		w.setHeight(windowHeight);
  		w.setTitle(I18nProvider.getAttribute().getAttributeWindowTitle(subtitle));
  		w.setCanDragReposition(true);
  		w.setCanDragResize(true);
  		w.setAutoCenter(true);
  		w.setKeepInParentRect(true);
  		return w;
  	}
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