src/java.base/share/classes/jdk/internal/misc/ThreadFlock.java

*** 270,19 ***
  
      /**
       * Shutdown this flock so that no new threads can be started, existing threads
       * in the flock will continue to run. This method is a no-op if the flock is
       * already shutdown or closed.
-      *
-      * <p> This method may only be invoked by the flock owner or threads {@linkplain
-      * #containsThread(Thread) contained} in the flock.
-      *
-      * @throws WrongThreadException if the current thread is not the owner or a thread
-      * contained in the flock
       */
      public void shutdown() {
-         ensureOwnerOrContainsThread();
          if (!shutdown) {
              shutdown = true;
          }
      }
  
--- 270,12 ---

*** 368,16 ***
       * {@linkplain #owner() owner} to return immediately.
       *
       * <p> If the owner is blocked in {@code awaitAll} then it will return immediately.
       * If the owner is not blocked in {@code awaitAll} then its next call to wait
       * will return immediately. The method does nothing when the flock is closed.
-      *
-      * @throws WrongThreadException if the current thread is not the owner or a thread
-      * contained in the flock
       */
      public void wakeup() {
-         ensureOwnerOrContainsThread();
          if (!getAndSetPermit(true) && Thread.currentThread() != owner()) {
              LockSupport.unpark(owner());
          }
      }
  
--- 361,12 ---