test/javax/swing/JTabbedPane/7161568/bug7161568.java

rev 14031 : 8160974: [TESTBUG] Mark more headful tests with @key headful.

This is a backport of fe58d505fffd from jdk9. 228/596 hunks apply without
modifications. 16 hunks required manual rework. The remainder were for files
not present in jdk8u.

@@ -25,10 +25,11 @@
 import java.awt.event.*;
 import sun.awt.SunToolkit;
 
 /**
  * @test
+ * @key headful
  * @bug 7161568
  * @author Alexander Scherbatiy
  * @summary Tests that navigating tabs in the JTAbbedPane does not throw NPE
  * @run main bug7161568
  */