--- a/test/jdk/java/awt/TrayIcon/TrayIconMouseTest/TrayIconMouseTest.java	Tue Feb 20 21:49:06 2018 -0800
+++ b/test/jdk/java/awt/TrayIcon/TrayIconMouseTest/TrayIconMouseTest.java	Wed Feb 21 12:49:00 2018 -0800
@@ -31,6 +31,7 @@
 /*
  * @test
  * @bug 6384991
+ * @key headful
  * @summary Check if ActionEvent is triggered by a TrayIcon when
  *          it is double clicked with mouse button 1 on windows
  *          or single clicked with button 3 on Mac OS X