public class JsonUtil {

    /**
     * Defualt constructor.
     */
    protected JsonUtil() {
    }

    /**
     * Escapes a value as Json string.
     *
     * @param value input
     * @return escaped string.
     */
    public static String escape(final String value) {
        if (value == null) {
            return null;
        }

        char c;
        final int len = value.length();

    }

    @Override
    protected String createSelectHint() {
        return null;
    }

    @Override
    protected String createFromBaseTableHint() {
        return null;
    }

    @Override
    protected String createFromHint() {
        return null;
    }

    @Override
    protected String createSqlSuffix() {
        return null;
    }

    @Override

    }

    @Override
    protected String createSelectHint() {
        return null;
    }

    @Override
    protected String createFromBaseTableHint() {
        return null;
    }

    @Override
    protected String createFromHint() {
        return null;
    }

    @Override
    protected String createSqlSuffix() {
        return null;
    }

    @Override

    private final String layoutId;

    public UnknownRepositoryLayoutException(String repositoryId, String layoutId) {
        super("Cannot find ArtifactRepositoryLayout instance for: " + layoutId, repositoryId);
        this.layoutId = layoutId;
    }

    public UnknownRepositoryLayoutException(String repositoryId, String layoutId, ComponentLookupException e) {

    private final String mavenVersion;

    @Inject
    public DefaultRuntimeInformation(VersionScheme versionScheme) {
        this.versionScheme = versionScheme;
        this.mavenVersion = loadMavenVersion();
    }

    @Override
    public String getMavenVersion() {
        return mavenVersion;
    }

    private String loadMavenVersion() {
        Properties props = new Properties();

    }

    @Override
    protected Client createClient() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String[] hosts =
                split(address, ",").get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));
        final Builder builder = Settings.builder()
                .putList("http.hosts", hosts)

     */
    public static boolean mavenMaven3Personality(@Nullable Map<String, ?> userProperties) {
        return doGet(userProperties, Constants.MAVEN_MAVEN3_PERSONALITY, false);
    }

    /**
     * Check if the consumer POM feature is active.
     */
    public static boolean consumerPom(@Nullable Map<String, ?> userProperties) {

@Deprecated
public class JdkPrefixProfileActivator extends DetectedProfileActivator {
    private static final String JDK_VERSION = System.getProperty("java.version");

    @Override
    public boolean isActive(Profile profile) throws ProfileActivationException {
        Activation activation = profile.getActivation();

        String jdk = activation.getJdk();

    }

    public void setValueOnModel(String expression, Object value) {
        context.setValue(expression, value);
    }

    public Iterator<?> getIteratorForXPathExpression(String expression) {
        return context.iterate(expression);
    }

    public boolean containsXPathExpression(String expression) {
        return context.getValue(expression) != null;
    }

    public void setId_Equal(String id) {
        setId_Term(id, null);
    }

    public void setId_Equal(String id, ConditionOptionCall<TermQueryBuilder> opLambda) {
        setId_Term(id, opLambda);
    }

    public void setId_Term(String id) {
        setId_Term(id, null);
    }

    public void setId_Term(String id, ConditionOptionCall<TermQueryBuilder> opLambda) {