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java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location
	at java.awt.Component.getLocationOnScreen_NoTreeLock(java.desktop@9-ea/Component.java:2079)
	at java.awt.Component.getLocationOnScreen(java.desktop@9-ea/Component.java:2053)	at undefined.CloseOnMouseClickPropertyTest.lambda$getClickPoint$2(CloseOnMouseClickPropertyTest.java:143)