return tailMap(key, true).firstEntry();
  }

  @Override
  public @Nullable Entry<K, V> higherEntry(@ParametricNullness K key) {
    return tailMap(key, false).firstEntry();
  }

  @Override
  public @Nullable K lowerKey(@ParametricNullness K key) {
    return Maps.keyOrNull(lowerEntry(key));
  }

  @Override
  public @Nullable K floorKey(@ParametricNullness K key) {

		return errTierNameNotUppercase
	}

	// check if tier name already in use
	if _, exists := config.isTierNameInUse(tierName); exists {
		return errTierAlreadyExists
	}

	d, err := newWarmBackend(ctx, tier, true)
	if err != nil {
		return err
	}

	if !ignoreInUse {
		// Check if warmbackend is in use by other MinIO tenants
		inUse, err := d.InUse(ctx)
		if err != nil {
			return err
		}

			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
		return
	}

	if err = httpWriter.Close(); err != nil {
		if !httpWriter.HasWritten() { // write error response only if no data or headers has been written to client yet
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
		return
	}
}

func quoteChar(c byte) string {
	// special cases - different from quoted strings
	if c == '\'' {
		return `'\''`
	}
	if c == '"' {
		return `'"'`
	}

	// use quoted string with different quotation marks
	s := strconv.Quote(string(c))
	return "'" + s[1:len(s)-1] + "'"

            }
            return new AbstractMap<String, String>() {
              @Override
              public Set<Entry<String, String>> entrySet() {
                return map.entrySet();
              }

              @Override
              public @Nullable String put(String key, String value) {
                checkNotNull(key);
                return map.put(key, value);
              }

        return registrationId;
    }

    /**
     * Gets the share name.
     *
     * @return the share name
     */
    public String getShareName() {
        return shareName;
    }

    /**
     * Gets the server address.
     *
     * @return the server address
     */
    public InetAddress getServerAddress() {
        return serverAddress;
    }

  public ImmutableSet<Range<C>> asRanges() {
    if (ranges.isEmpty()) {
      return ImmutableSet.of();
    }
    return new RegularImmutableSortedSet<>(ranges, rangeLexOrdering());
  }

  @Override
  public ImmutableSet<Range<C>> asDescendingSetOfRanges() {
    if (ranges.isEmpty()) {
      return ImmutableSet.of();
    }
    return new RegularImmutableSortedSet<>(ranges.reverse(), Range.<C>rangeLexOrdering().reverse());

      if (obj instanceof InPredicate) {
        InPredicate<?> that = (InPredicate<?>) obj;
        return target.equals(that.target);
      }
      return false;
    }

    @Override
    public int hashCode() {
      return target.hashCode();
    }

    @Override
    public String toString() {
      return "Predicates.in(" + target + ")";
    }

                            return s1.compareTo(s2);
                        } else {
                            return 0;
                        }
                    } else {
                        return v;
                    }
                } else {
                    return 0;
                }
            } else {
                return a;
            }
        }

    public String readLine() throws IOException {
        try {
            return prompter.prompt(null);
        } catch (org.apache.maven.api.services.PrompterException e) {
            throw new IOException("Unable to prompt", e);
        }
    }

    @Override
    public String readPassword() throws IOException {
        try {
            return prompter.promptForPassword(null);