*
   * @return a {@link Class} for {@link Finalizer} or {@code null} if none of the loaders load it
   */
  private static @Nullable Class<?> loadFinalizer(FinalizerLoader... loaders) {
    for (FinalizerLoader loader : loaders) {
      Class<?> finalizer = loader.loadFinalizer();
      if (finalizer != null) {
        return finalizer;
      }
    }

    return null;
  }

  /** Loads Finalizer.class. */

   *
   * @return a {@link Class} for {@link Finalizer} or {@code null} if none of the loaders load it
   */
  private static @Nullable Class<?> loadFinalizer(FinalizerLoader... loaders) {
    for (FinalizerLoader loader : loaders) {
      Class<?> finalizer = loader.loadFinalizer();
      if (finalizer != null) {
        return finalizer;
      }
    }

    return null;
  }

  /** Loads Finalizer.class. */

          @Override
          URLClassLoader newLoader(URL base) {
            return new DecoupledClassLoader(new URL[] {base});
          }
        };

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

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

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