byte[] token = negoResp.getSecurityBlob();
        final int securityMode = negoResp.getSecurityMode();
        boolean anonymous = this.credentials.isAnonymous();
        final boolean doSigning = securityMode != 0 && !anonymous;
        long newSessId = 0;
        long curSessId = this.sessionId;

        synchronized (trans) {
            this.credentials.refresh();

// response for anonymous/unsigned and unknown signature type HTTP request.

// Here is the brief description of some of the arguments to the function below.
//
//	apiRouter - http.Handler with the relevant API endPoint (API endPoint under test) registered.
//	anonReq   - unsigned *http.Request to invoke the handler's response for anonymous requests.

		return
	}

	// Check if anonymous (non-owner) has access to list objects.
	readable := globalPolicySys.IsAllowed(policy.BucketPolicyArgs{
		Action:          policy.ListBucketAction,
		BucketName:      bucket,
		ConditionValues: getConditionValues(r, "", auth.AnonymousCredentials),
		IsOwner:         false,
	})

	// Check if anonymous (non-owner) has access to upload objects.

  static <T extends @Nullable Object> UnmodifiableListIterator<T> emptyListIterator() {
    return (UnmodifiableListIterator<T>) ArrayItr.EMPTY;
  }

  /**
   * This is an enum singleton rather than an anonymous class so ProGuard can figure out it's only
   * referenced by emptyModifiableIterator().
   */
  private enum EmptyModifiableIterator implements Iterator<Object> {
    INSTANCE;

    @Override