/**
 * Describes the result of a plugin prefix resolution request.
 *
 * @since 3.0
 */
public interface PluginPrefixResult {

    /**
     * The resolved group id for the plugin.
     *
     * @return The resolved group id for the plugin, never {@code null}.
     */
    String getGroupId();

    /**
     * The resolved artifact id for the plugin.
     *

Configuration levels in maven

 In maven configuration control happens on four differ levels: the site level, the group level,
 the project level, and the user level. On the site level you can configure maven for all users
 utilizing the local installation, the group level allows configuration management for all the projects
 that belong to the same group, the project level allows configuration management at

    }

    /**
     * Searches an artifact of the given group and artifact identifiers, and returns its path
     *
     * @param group the group identifier to search
     * @param artifact the artifact identifier to search
     * @return path to the desired artifact, or {@code null} if not found
     */
    private Path findArtifactPath(String group, String artifact) throws IOException {

    }

    @Override
    public Model findModel(Artifact artifact) {
        if (GROUP_ID.equals(artifact.getGroupId())
                && ARTIFACT_ID.equals(artifact.getArtifactId())
                && VERSION.equals(artifact.getVersion())) {
            Model m = new Model();
            m.setArtifactId(ARTIFACT_ID);
            m.setGroupId(GROUP_ID);
            m.setVersion(VERSION);
            Repository repository = new Repository();

      Maven.
    </description>
  </expression>
  <expression>
    <syntax>project.artifact</syntax>
    <configuration>
      <![CDATA[
<groupId>project.group</groupId>
<artifactId>project-artifact</artifactId>
<version>0.0.0.0</version>
<packaging>type</packaging>
    ]]></configuration>
    <description> This is the Artifact instance created from the essential project

   | This is a list of additional group identifiers that will be searched when resolving plugins by their prefix, i.e.
   | when invoking a command line like "mvn prefix:goal". Maven will automatically add the group identifiers
   | "org.apache.maven.plugins" and "org.codehaus.mojo" if these are not already contained in the list.
   |-->
  <pluginGroups>
    <!-- pluginGroup
     | Specifies a further group identifier to use for plugin lookup.

        this.remainingProjects = remainingProjects;
    }

    /**
     * Returns the projects that still need to be built when resuming.
     * @return A list containing the group and artifact id of the projects.
     */
    public List<String> getRemainingProjects() {
        return this.remainingProjects;
    }

        }
        return toId(groupId, artifactId, version);
    }

    /**
     * Creates a user-friendly artifact id from the specified coordinates.
     *
     * @param groupId The group id, may be {@code null}.
     * @param artifactId The artifact id, may be {@code null}.
     * @param version The version, may be {@code null}.
     * @return The user-friendly artifact id, never {@code null}.
     */

 */
package org.apache.maven.artifact.repository.metadata;

import java.util.Iterator;
import java.util.List;

import org.apache.maven.artifact.repository.ArtifactRepository;

/**
 * Metadata for the group directory of the repository.
 *
 */
@Deprecated
public class GroupRepositoryMetadata extends AbstractRepositoryMetadata {
    private final String groupId;

    public GroupRepositoryMetadata(String groupId) {

import java.io.File;

/**
 * Describes a constituent of a class realm.
 *
 */
public interface ClassRealmConstituent {

    /**
     * Gets the group id of the constituent's artifact.
     *
     * @return The group id, never {@code null}.
     */
    String getGroupId();

    /**
     * Gets the artifact id of the constituent's artifact.
     *