test/java/awt/datatransfer/ClipboardInterVMTest/ClipboardInterVMTest.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.

*** 21,30 ****
--- 21,31 ----
   * questions.
   */
  
  /*
    @test
+   @key headful
    @bug 8071668
    @summary Check whether clipboard see changes from external process after taking ownership
    @author Anton Nashatyrev: area=datatransfer
    @library /lib/testlibrary
    @build jdk.testlibrary.Utils