updater.write("# " + line);
                    }
                    continue;
                }

                final String input = m.group(1).trim();
                final String output = m.group(2).trim();

                if (input == null || output == null) {
                    logger.warn("Failed to parse stemmer override: line={}, path={}", line, path);

    private static final String WORKSPACE = "WORKSPACE";

    @Override
    public Optional<CIInfo> detectCI() {
        String workspace = System.getenv(WORKSPACE);
        if (workspace != null && !workspace.trim().isEmpty()) {
            return Optional.of(new CIInfo() {
                @Override
                public String name() {
                    return NAME;
                }
            });
        }

      }
    }

    var pos = 0
    while (pos < value.length) {
      val tokenStart = pos
      pos = value.indexOfElement("=,;", pos)
      val directive = value.substring(tokenStart, pos).trim()
      val parameter: String?

      if (pos == value.length || value[pos] == ',' || value[pos] == ';') {
        pos++ // Consume ',' or ';' (if necessary).
        parameter = null
      } else {

        if (StringUtil.isNotBlank(value)) {
            split(value, ",").of(stream -> stream.forEach(list::add));
        }
        return list.stream().filter(StringUtil::isNotBlank).map(String::trim).toArray(n -> new String[n]);
    }

    /**
     * Gets the default roles as an array.
     * @return The default roles as an array.
     */
    protected String[] getDefaultRolesAsArray() {

        List<Snippet> currentSnippets = new ArrayList<>();

        for (int i = 0; i < lines.size(); i++) {
            String raw = lines.get(i);
            String line = raw.trim();

            if (line.equals("====")) {  // first ====
                // Toggle example block
                if (!inExample) {
                    inExample = true;
                    currentSnippets.clear();

        }
    }

    private final Function<String, LifecycleMojo> fromGoalIntoLifecycleMojo = s -> {
        LifecycleMojo lifecycleMojo = new LifecycleMojo();
        lifecycleMojo.setGoal(s.trim());
        return lifecycleMojo;
    };

    @Override
    public String toString() {
        return Optional.ofNullable(getMojos()).orElse(Collections.emptyList()).stream()

        String localRepoHead = mergedProps.get(Constants.MAVEN_REPO_LOCAL_HEAD);
        if (localRepoHead != null) {
            Arrays.stream(localRepoHead.split(","))
                    .filter(p -> p != null && !p.trim().isEmpty())
                    .map(this::resolve)
                    .forEach(paths::add);
        }
        paths.add(Paths.get(request.getLocalRepository().getBasedir()));

     */
    @Test
    public void testLtrim() throws Exception {
        assertEquals("1", "trim", StringUtil.ltrim("zzzytrim", "xyz"));
        assertEquals("2", "", StringUtil.ltrim("xyz", "xyz"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testRtrim() throws Exception {
        assertEquals("trim", StringUtil.rtrim("trimxxxx", "x"));
        assertEquals("", StringUtil.rtrim("xyz", "xyz"));

        String requiredMavenVersion = pluginDescriptor.getRequiredMavenVersion();

        boolean isBlankVersion =
                requiredMavenVersion == null || requiredMavenVersion.trim().isEmpty();

        if (!isBlankVersion) {
            boolean isRequirementMet = false;
            try {
                isRequirementMet = runtimeInformation.isMavenVersion(requiredMavenVersion);

        String k = null;
        for (String line : Files.readAllLines(Paths.get("src/test/resources/dag.txt"))) {
            if (line.startsWith("\t")) {
                data.add(new String[] {k, line.trim()});
            } else {
                k = line;
            }
        }
        Collections.shuffle(data);

        Graph g = new Graph();
        data.parallelStream().forEach(s -> {
            try {