@Override
            public void finalizeReferent() {
              finalized.release();
            }
          };
      return wr;
    }
  }

  public void testUnloadableInStaticFieldIfClosed() throws Exception {
    if (isJdk9OrHigher()) {
      return;
    }
    Policy oldPolicy = Policy.getPolicy();
    SecurityManager oldSecurityManager = System.getSecurityManager();
    try {