String requiredMavenVersion = pluginDescriptor.getRequiredMavenVersion();

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

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

            if (logger.isDebugEnabled()) {
                logger.warn(msg, e);
            } else {
                logger.warn(msg);
            }
        }

        String version = props.getProperty("version", "").trim();

        if (!version.startsWith("${")) {
            return version;
        } else {
            return "";
        }
    }

    @Override
    public boolean isMavenVersion(String versionRange) {

            }
            restrictions.add(restriction);
            upperBound = restriction.getUpperBound();

            process = process.substring(index + 1).trim();

            if (process.startsWith(",")) {
                process = process.substring(1).trim();
            }
        }

        if (!process.isEmpty()) {
            if (!restrictions.isEmpty()) {

            }
        }
    }

    private GoalSpec parseGoalSpec(String goalSpec) {
        GoalSpec gs = new GoalSpec();

        String[] p = goalSpec.trim().split(":");

        if (p.length == 3) {
            // <groupId>:<artifactId>:<goal>
            gs.groupId = p[0];
            gs.artifactId = p[1];
            gs.goal = p[2];

        }
    }

    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()

     */
    private static String protocol(final String url) {
        final int pos = url.indexOf(':');

        if (pos == -1) {
            return "";
        }
        return url.substring(0, pos).trim();
    }

    /**
     * Derive the path portion of the given URL.
     *
     * @param url the repository URL
     * @return the basedir of the repository
     * TODO need to URL decode for spaces?

            result = true;
        } else {
            // process the list
            String[] repos = pattern.split(",");
            for (String repo : repos) {
                repo = repo.trim();
                // see if this is a negative match
                if (repo.length() > 1 && repo.startsWith("!")) {
                    if (repo.substring(1).equals(originalId)) {

                    "includesDependencies",
                    ""
                };

                int i = 0;
                for (String col : cols) {
                    assertEquals(expected[i++], col.trim(), "Wrong column header");
                }
            } else if (line.startsWith("|")) {
                String[] cols = line.split("\\|");

                String type = trimApt(cols[1]);

            }
        }

        return fullMessage.trim();
    }

    private String join(String message1, String message2) {
        String message = "";

        if (message1 != null && !message1.isEmpty()) {
            message = message1.trim();
        }

        if (message2 != null && !message2.isEmpty()) {

            }
        }

        return location;
    }

    private static boolean equals(String s1, String s2) {
        String c1 = s1 == null ? "" : s1.trim();
        String c2 = s2 == null ? "" : s2.trim();
        return c1.equals(c2);
    }

    private static Severity getSeverity(ModelBuilderRequest request, int errorThreshold) {