private static final Method startFinalizer;

  static {
    Class<?> finalizer =
        loadFinalizer(new SystemLoader(), new DecoupledLoader(), new DirectLoader());
    startFinalizer = getStartFinalizer(finalizer);
  }

  /** The actual reference queue that our background thread will poll. */
  final ReferenceQueue<Object> queue;

  final PhantomReference<Object> frqRef;

    Class<?> finalizerCopy = decoupledLoader.loadFinalizer();

    assertThat(finalizerCopy).isNotNull();
    assertThat(finalizerCopy).isNotEqualTo(Finalizer.class);

    assertThat(FinalizableReferenceQueue.getStartFinalizer(finalizerCopy)).isNotNull();
  }

  static class DecoupledClassLoader extends URLClassLoader {

    public DecoupledClassLoader(URL[] urls) {
      super(urls);
    }

    @Override