--- old/src/java.desktop/windows/classes/sun/awt/windows/WToolkit.java	2018-02-28 17:30:50.784414200 +0000
+++ new/src/java.desktop/windows/classes/sun/awt/windows/WToolkit.java	2018-02-28 17:30:50.346190000 +0000
@@ -1104,6 +1104,7 @@
         }
 
         if ((e instanceof MouseEvent) && comp.isEnabled() &&
+            comp.isFocusable() &&
             (((comp instanceof TextComponent) &&
                     ((TextComponent)comp).isEditable()) ||
                 ((comp instanceof JTextComponent) &&