test/jdk/java/lang/Thread/virtual/Parking.java

@@ -139,11 +139,11 @@
              LockSupport.unpark(me);
              LockSupport.unpark(me);
              LockSupport.park();
              LockSupport.park();  // should park
          });
-         Thread.sleep(1000); // give time for thread to park
+         await(thread, Thread.State.WAITING);
          LockSupport.unpark(thread);
          thread.join();
      }
  
      /**