test/javax/swing/JFrame/HangNonVolatileBuffer/HangNonVolatileBuffer.java

rev 14989 : 8160974: [TESTBUG] Mark more headful tests with @key headful.

*** 26,35 ****
--- 26,36 ----
  import javax.swing.JFrame;
  import javax.swing.SwingUtilities;
  
  /**
   * @test
+  * @key headful
   * @bug 8029455
   * @summary Swing should not hang if non-volatile image is used as a backbuffer.
   * @run main/othervm -Dswing.volatileImageBufferEnabled=false HangNonVolatileBuffer
   */
  public final class HangNonVolatileBuffer {