* assigned characters, including important CJK characters and emoji.
 *
 * <p>Supplementary characters are <a
 * href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#supplementary">encoded
 * into a {@code String} using surrogate pairs</a>, and a {@code CharMatcher} treats these just as
 * two separate characters. {@link #countIn} counts each supplementary character as 2 {@code char}s.
 *

 *
 * Percent encoding replaces a character (like `\ud83c\udf69`) with its UTF-8 hex bytes (like
 * `%F0%9F%8D%A9`). This approach works for whitespace characters, control characters, non-ASCII
 * characters, and characters that already have another meaning in a particular context.
 *
 * Percent encoding is used in every URL component except for the hostname. But the set of

     </dependency>
     ```


## Version 3.3.1

_2016-05-28_

 *  Fix: The plaintext check in HttpLoggingInterceptor incorrectly classified
    newline characters as control characters. This is fixed.
 *  Fix: Don't crash reading non-ASCII characters in HTTP/2 headers or in cached
    HTTP headers.
 *  Fix: Retain the response body when an attempt to open a web socket returns a
    non-101 response code.

    // Host names are special:
    //
    //  * Several characters are forbidden and must throw exceptions if used.
    //  * They don't use percent escaping at all.
    //  * They use punycode for internationalization.
    //  * URI is much more strict than HttpUrl or URL on what's accepted.
    //
    // HttpUrl is quite lenient with what characters it accepts. In particular, characters like '{'

  optional bool force = 2;

  // fieldManager is a name associated with the actor or entity
  // that is making these changes. The value must be less than or
  // 128 characters long, and only contain printable characters,
  // as defined by https://golang.org/pkg/unicode/#IsPrint. This
  // field is required.
  optional string fieldManager = 3;
}

     * The wildcard expression may consist of two special meta
     * characters in addition to the normal filename characters. The '*'
     * character matches any number of characters in part of a name. If
     * the expression begins with one or more '?'s then exactly that
     * many characters will be matched whereas if it ends with '?'s
     * it will match that many characters <i>or less</i>.
     * <p>

	} else {
		// Check if group already exists
		if _, gerr := globalIAMSys.GetGroupDescription(updReq.Group); gerr != nil {
			// If group does not exist, then check if the group has beginning and end space characters
			// we will reject such group names.
			if errors.Is(gerr, errNoSuchGroup) && hasSpaceBE(updReq.Group) {
				writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminResourceInvalidArgument), r.URL)
				return
			}

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidEncryptionKeyID: {
		Code:           "InvalidRequest",
		Description:    "The specified KMS KeyID contains unsupported characters",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInsecureSSECustomerRequest: {
		Code:           "InvalidRequest",

	expiresStr := req.Header.Get("Expires")
	if expiresStr == "" {
		expiresStr = strconv.FormatInt(epochExpires, 10)
		req.Header.Set("Expires", expiresStr)
	}

	// url.RawPath will be valid if path has any encoded characters, if not it will
	// be empty - in which case we need to consider url.Path (bug in net/http?)
	encodedResource := req.URL.RawPath
	encodedQuery := req.URL.RawQuery
	if encodedResource == "" {

                            version,
                            prefix + fieldName,
                            sourceHint,
                            "must not contain any of these characters " + banned + " but found " + string.charAt(i),
                            tracker);
                    return false;
                }
            }
        }

        return true;
    }