test/java/awt/Graphics2D/DrawString/XRenderElt254TextTest.java

rev 14031 : 8159690: [TESTBUG] Mark headful tests with @key headful.

Backport of 14851:980da45565c8 from jdk9.  542/842 hunks applied directly from
the patch. 44 I resolved manually.  The remaining hunks are for filenames that
do not exist in jdk8u.

*** 1,7 ****
  /*
!  * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 29,38 ****
--- 29,39 ----
  import javax.imageio.*;
  import javax.swing.*;
  
  /**
   * @test
+  * @key headful
   * @bug 8028722
   * @summary tests wether drawString with 254 characters causes the xrender
   *          pipeline to hang.
   * @author ceisserer
   */