test/javax/swing/JTabbedPane/6495408/bug6495408.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.

*** 24,33 ****
--- 24,34 ----
  import javax.swing.*;
  import java.awt.*;
  import sun.awt.SunToolkit;
  /*
   * @test
+  * @key headful
   * @bug 6495408
   * @summary REGRESSION: JTabbedPane throws ArrayIndexOutOfBoundsException
   * @author Alexander Potochkin
   * @run main bug6495408
   */