test/javax/swing/text/AbstractDocument/6968363/Test6968363.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.

@@ -42,10 +42,11 @@
 import static java.awt.event.KeyEvent.VK_LEFT;
 import static javax.swing.SwingUtilities.invokeAndWait;
 
 /*
  * @test
+ * @key headful
  * @bug 6968363
  * @summary Ensures that a custom document may not extend AbstractDocument
  * @author Sergey Malenkov
  */
 public class Test6968363 implements Runnable, Thread.UncaughtExceptionHandler {