extends AbstractMojo
{
    private static final Pattern ALT_REPO_SYNTAX_PATTERN = Pattern.compile( "(.+)::(.*)::(.+)" );

    @Parameter( defaultValue = "${session}", required = true, readonly = true )
    private MavenSession session;

    @Component
    private ArtifactResolver artifactResolver;

    @Component
    private DependencyResolver dependencyResolver;

    @Component
    private ArtifactHandlerManager artifactHandlerManager;

    /**
     * Map that contains the layouts.
     */
    @Component( role = ArtifactRepositoryLayout.class )
    private Map<String, ArtifactRepositoryLayout> repositoryLayouts;

    /**
     * The repository system.
     */
    @Component
    private RepositorySystem repositorySystem;

    private DefaultDependableCoordinate coordinate = new DefaultDependableCoordinate();

    /**
     * The groupId of the artifact to download. Ignored if {@link #artifact} is used.
     */
    @Parameter( property = "groupId" )
    private String groupId;

    /**
     * The artifactId of the artifact to download. Ignored if {@link #artifact} is used.
     */
    @Parameter( property = "artifactId" )
    private String artifactId;

    /**
     * The version of the artifact to download. Ignored if {@link #artifact} is used.
     */
    @Parameter( property = "version" )
    private String version;

    /**
     * The classifier of the artifact to download. Ignored if {@link #artifact} is used.
     *
     * @since 2.3
     */
    @Parameter( property = "classifier" )
    private String classifier;

    /**
     * The packaging of the artifact to download. Ignored if {@link #artifact} is used.
     */
    @Parameter( property = "packaging", defaultValue = "jar" )
    private String packaging = "jar";

    /**
     * Repositories in the format id::[layout]::url or just url, separated by comma. ie.
     * central::default::https://repo.maven.apache.org/maven2,myrepo::::https://repo.acme.com,https://repo.acme2.com
     */
    @Parameter( property = "remoteRepositories" )
    private String remoteRepositories;

    /**
     * A string of the form groupId:artifactId:version[:packaging[:classifier]].
     */
    @Parameter( property = "artifact" )
    private String artifact;

    /**
     *
     */
    @Parameter( defaultValue = "${project.remoteArtifactRepositories}", readonly = true, required = true )
    private List<ArtifactRepository> pomRemoteRepositories;

    /**
     * Download transitively, retrieving the specified artifact and all of its dependencies.
     */
    @Parameter( property = "transitive", defaultValue = "true" )

+ "read parameters documentation for detailed explanations" );
        }
        filter.addFilter( new ScopeFilter( DependencyUtil.cleanToBeTokenizedString( this.includeScope ),
                                           DependencyUtil.cleanToBeTokenizedString( this.excludeScope ) ) );

        filter.addFilter( new TypeFilter( DependencyUtil.cleanToBeTokenizedString( this.includeTypes ),
                                          DependencyUtil.cleanToBeTokenizedString( this.excludeTypes ) ) );

        filter.addFilter( new ClassifierFilter( DependencyUtil.cleanToBeTokenizedString( this.includeClassifiers ),
                                                DependencyUtil.cleanToBeTokenizedString( this.excludeClassifiers ) ) );

        filter.addFilter( new GroupIdFilter( DependencyUtil.cleanToBeTokenizedString( this.includeGroupIds ),
                                             DependencyUtil.cleanToBeTokenizedString( this.excludeGroupIds ) ) );

        filter.addFilter( new ArtifactIdFilter( DependencyUtil.cleanToBeTokenizedString( this.includeArtifactIds ),
                                                DependencyUtil.cleanToBeTokenizedString( this.excludeArtifactIds ) ) );