src/java.base/share/classes/java/lang/ref/Finalizer.java

*** 119,129 ****
         The advantage of creating a fresh thread, however, is that it insulates
         invokers of these methods from a stalled or deadlocked finalizer thread.
       */
      private static void forkSecondaryFinalizer(final Runnable proc) {
          AccessController.doPrivileged(
!             new PrivilegedAction<Void>() {
                  public Void run() {
                      ThreadGroup tg = Thread.currentThread().getThreadGroup();
                      for (ThreadGroup tgn = tg;
                           tgn != null;
                           tg = tgn, tgn = tg.getParent());
--- 119,129 ----
         The advantage of creating a fresh thread, however, is that it insulates
         invokers of these methods from a stalled or deadlocked finalizer thread.
       */
      private static void forkSecondaryFinalizer(final Runnable proc) {
          AccessController.doPrivileged(
!             new PrivilegedAction<>() {
                  public Void run() {
                      ThreadGroup tg = Thread.currentThread().getThreadGroup();
                      for (ThreadGroup tgn = tg;
                           tgn != null;
                           tg = tgn, tgn = tg.getParent());