}

  /**
   * Tests that the use of a {@link FinalizableReferenceQueue} does not subsequently prevent the
   * loader of that class from being garbage-collected.
   */
  public void testUnloadableWithoutSecurityManager() throws Exception {
    if (isJdk9OrHigher()) {
      return;
    }
    SecurityManager oldSecurityManager = System.getSecurityManager();
    try {
      System.setSecurityManager(null);

  }

  /**
   * Tests that the use of a {@link FinalizableReferenceQueue} does not subsequently prevent the
   * loader of that class from being garbage-collected.
   */
  public void testUnloadableWithoutSecurityManager() throws Exception {
    if (isJdk9OrHigher()) {
      return;
    }
    SecurityManager oldSecurityManager = System.getSecurityManager();
    try {
      System.setSecurityManager(null);