modules/javafx.graphics/src/main/native-glass/mac/GlassWindow.m

*** 634,643 ****
--- 634,649 ----
      {
          jWindowNotifyMoveToAnotherScreen = (*env)->GetMethodID(env, jWindowClass, "notifyMoveToAnotherScreen", "(Lcom/sun/glass/ui/Screen;)V");
          if ((*env)->ExceptionCheck(env)) return;
      }
  
+     if (jWindowNotifyScaleChanged == NULL)
+     {
+         jWindowNotifyScaleChanged = (*env)->GetMethodID(env, jWindowClass, "notifyScaleChanged", "(FFFF)V");
+         if ((*env)->ExceptionCheck(env)) return;
+     }
+ 
      if (jWindowNotifyClose == NULL)
      {
          jWindowNotifyClose = (*env)->GetMethodID(env, jWindowClass, "notifyClose", "()V");
          if ((*env)->ExceptionCheck(env)) return;
      }