private static final Attributes.Name AUTO_MODULE_NAME = new Attributes.Name("Automatic-Module-Name");

    /**
     * Module information for the path specified at construction time.
     * This map is usually either empty if no module was found, or a singleton map.
     * It may however contain more than one entry if module hierarchy was detected,
     * in which case there is one key per sub-directory.
     *

        // Either the original or the specified version ranges have no restrictions
        else if (recommendedVersion != null) {
            // Use the original recommended version since it exists
            version = recommendedVersion;
        } else if (restriction.recommendedVersion != null) {
            // Use the recommended version from the specified VersionRange since there is no
            // original recommended version

            if (file == null && project != project.getExecutionProject()) {
                file = findArtifact(project.getExecutionProject(), artifact);
            }
            return file;
        }

        // No project, but most certainly a dependency which has been built previously
        File packagedArtifactFile = findInProjectLocalRepository(artifact);
        if (packagedArtifactFile != null && packagedArtifactFile.exists()) {

  network <beyond localhost> exists, and leave the more extreme state to users
  to diagnose and correct as necessary.

* Why is Offline Mode Important?

  Offline mode is essential for breaking the requirement that m2 operate in a
  network-connected environment. It means legitimizing a development environment
  in which there is no network connection, and providing a robust m2 service

        if (executionIdx > 0) {
            goal = goal.substring(0, executionIdx);
        }

        injectPluginDeclarationFromProject(plugin, project);

        // If there is no version to be found then we need to look in the repository metadata for
        // this plugin and see what's specified as the latest release.
        //
        if (plugin.getVersion() == null) {

                    || descriptor.getRequiredMavenVersion().trim().isEmpty();

            if (isBlankVersion) {
                // only take value from underlying POM if plugin descriptor has no explicit Maven requirement
                descriptor.setRequiredMavenVersion(artifact.getProperty("requiredMavenVersion", null));
            }

            return descriptor;
        });

        if (mojoDescriptor.isProjectRequired() && !session.getRequest().isProjectPresent()) {
            Throwable cause = new MissingProjectException(
                    "Goal requires a project to execute" + " but there is no POM in this directory ("
                            + session.getExecutionRootDirectory() + ")."
                            + " Please verify you invoked Maven from the correct directory.");

            if (versionRangeResult.getHighestVersion() == null) {
                throw new UnresolvableModelException(
                        String.format(
                                "No versions matched the requested parent version range '%s'", parent.getVersion()),
                        parent.getGroupId(),
                        parent.getArtifactId(),
                        parent.getVersion());

        checkVersionsEqual("1", "1.0.0");
        checkVersionsEqual("1.0", "1.0.0");
        checkVersionsEqual("1", "1-0");
        checkVersionsEqual("1", "1.0-0");
        checkVersionsEqual("1.0", "1.0-0");
        // no separator between number and character
        checkVersionsEqual("1a", "1-a");
        checkVersionsEqual("1a", "1.0-a");
        checkVersionsEqual("1a", "1.0.0-a");
        checkVersionsEqual("1.0a", "1-a");

        Settings effective =
                settingsMerger.merge(user, settingsMerger.merge(project, global, false, null), false, null);

        // If no repository is defined in the user/global settings,
        // it means that we have "old" settings (as those are new in 4.0)
        // so add central to the computed settings for backward compatibility.