[[1]] This is obvious, but the network/internet is unavailable.

  [[2]] Localhost (127.0.0.1) may also be unavailable if the whole
        network stack is offline.

  [[3]] "Remote" repositories referenced using the file:// protocol may
        be available. However, if that file:// url references a
        file-share, as in the case of an NFS or SMB mount, that will
        be unavailable.

             * sake of backward-compat with 2.x (MNG-5000). In general, it is wrong to
             * base URL inheritance on the module directory names as this information is unavailable for POMs in the
             * repository. In other words, modules where artifactId != moduleDirName will see different effective URLs
             * depending on how the model was constructed (from filesystem or from repository).

    /**
     * Determines the mirror for the specified repository.
     *
     * @param repository The repository to determine the mirror for, must not be {@code null}.
     * @param mirrors The available mirrors, may be {@code null}.
     * @return The mirror specification for the repository or {@code null} if no mirror matched.
     */
    Mirror getMirror(ArtifactRepository repository, List<Mirror> mirrors);

    /**

                        // retrieved, we need to update it.
                        // TODO shouldn't the versions be merged across relocations?
                        List<ArtifactVersion> available = artifact.getAvailableVersions();
                        if (available != null && !available.isEmpty()) {

import org.apache.maven.api.spi.ModelParserException;

/**
 *
 * Note: uses @Typed to limit the types it is available for injection to just ModelProcessor.
 *
 * This is because the ModelProcessor interface extends ModelLocator and ModelReader. If we
 * made this component available under all its interfaces then it could end up being injected
 * into itself leading to a stack overflow.
 *

 the site level, group level and project level.

* Site configuration

 At the site level all configuration is achieved by tweaking the various files that
 are available in the ${maven.home}/site-configuration directory

+-----+
${maven.home}
     |
     +--- maven.properties
+-----+

* Group configuration

 *
 */
public interface DependencyResolutionResult {

    /**
     * Gets the dependency graph of the project.
     *
     * @return The dependency graph or {@code null} if not available.
     */
    DependencyNode getDependencyGraph();

    /**
     * Gets the transitive dependencies of the project that were not excluded by

  Source Code:        https://gitbox.apache.org/repos/asf/maven.git
  Issue Tracking:     https://issues.apache.org/jira/browse/MNG
  Wiki:               https://cwiki.apache.org/confluence/display/MAVEN/

     * does not exist yet. In turn, this method will not record extra information like plugin occurrence or declaration
     * location as those are not yet available.
     */
    void reportPluginValidationIssue(
            IssueLocality locality, RepositorySystemSession session, Artifact pluginArtifact, String issue);

    /**

                        + " <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>."
                        + " Available lifecycle phases are: " + defaultLifeCycles.getLifecyclePhaseList() + ".");
            }

            if (logger.isDebugEnabled()) {
                lifecycleDebugLogger.debugReactorPlan(projectBuilds);
            }