*/
    public static class ContentTransformer implements Transformer {
        private final String name;
        private final Map<String, String> transformationRules = new HashMap<>();

        public ContentTransformer(String name) {
            this.name = name;
        }

        public void addTransformationRule(String pattern, String replacement) {
            transformationRules.put(pattern, replacement);
        }

     * @return a list of extracted URLs
     * @deprecated Use {@link #getUrlFromTagAttribute(URI, Document, String, String, String)} instead.
     */
    @Deprecated
    protected List<String> getUrlFromTagAttribute(final URL url, final Document document, final String xpath, final String attr,
            final String encoding) {
        try {
            return getUrlFromTagAttribute(url.toURI(), document, xpath, attr, encoding);

        // ======================
        String ALL = "all";
        String EACH = "each";
        String BUILD = "build";
        String INITIALIZE = "initialize";
        String VALIDATE = "validate";
        String SOURCES = "sources";
        String RESOURCES = "resources";
        String COMPILE = "compile";
        String READY = "ready";
        String PACKAGE = "package";
        String VERIFY = "verify";

     *
     * @param value the permission string to encode
     * @return the encoded permission string, or null if the input is blank or invalid
     */
    public String encode(final String value) {
        if (StringUtil.isBlank(value)) {
            return null;
        }

        String permission = value.trim();
        String lower = permission.toLowerCase(Locale.ROOT);
        final String aclPrefix;

    }

    /**
     * Retrieves a string value from system properties with a default fallback.
     *
     * @param key the property key to look up
     * @param defaultValue the default value if the property is not found
     * @return the string value or default value
     */
    protected String getDefaultString(final String key, final String defaultValue) {
        final String value = systemProperties.getProperty(key);

    assertThat(challenges.size).isEqualTo(1)
    assertThat(challenges[0].scheme).isEqualTo("Digest")
    assertThat(challenges[0].realm).isEqualTo("myrealm")
    val expectedAuthParams = mutableMapOf<String, String>()
    expectedAuthParams["realm"] = "myrealm"
    expectedAuthParams["nonce"] = "fjalskdflwejrlaskdfjlaskdjflaksjdflkasdf"
    expectedAuthParams["qop"] = "auth"
    expectedAuthParams["stale"] = "FALSE"

// configuration name.
func (r Config) GetUserReadableClaim(cfgName string) string {
	pCfg, ok := r.ProviderCfgs[cfgName]
	if ok {
		return pCfg.UserReadableClaim
	}
	return ""
}

// GetUserIDClaim returns the user ID claim for the given configuration name, or "sub" if not set.
func (r Config) GetUserIDClaim(cfgName string) string {
	pCfg, ok := r.ProviderCfgs[cfgName]
	if ok {
		if pCfg.UserIDClaim != "" {

        }
    }

    /**
     * Converts a pattern string to a plain pattern string without delimiters.
     *
     * @param pattern
     *            The pattern string.
     * @return The plain pattern string without delimiters.
     */
    protected static String toPlainPattern(final String pattern) {
        final StringBuilder buf = new StringBuilder(pattern.length());

    protected String sessionId;

    /** The HTTP method used for the URL in the queue. */
    protected String method;

    /** The URL from the queue. */
    protected String url;

    /** The metadata associated with the URL queue. */
    protected String metaData;

    /** The encoding of the URL queue. */
    protected String encoding;

        return super.hashCode();
    }

    @Override
    public String toString() {
        return getClass().getSimpleName() + ":" + doBuildColumnString(", ") + "@" + Integer.toHexString(hashCode());
    }

    protected abstract String doBuildColumnString(String dm);

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override