This can't have been tested in jtreg ..

import sun.awt.AppContext;
          ^
  (package sun.awt is declared in module java.desktop, which does not export it to the unnamed module)
/client/open/test/jdk/java/awt/event/SequencedEvent/SequencedEventTest.java:32: error: package sun.awt is not visible
import sun.awt.SunToolkit;
          ^
  (package sun.awt is declared in module java.desktop, which does not export it to the unnamed module)