* @return The resolved plugin artifact, never {@code null}.
     * @throws PluginResolutionException If the plugin artifact could not be resolved.
     */
    Artifact resolve(Plugin plugin, List<RemoteRepository> repositories, RepositorySystemSession session)
            throws PluginResolutionException;

    /**
     * Resolves the runtime dependencies of the specified plugin.
     *

        Map.Entry<Artifact, Path> resolved = session.resolveArtifact(coord);
        assertNotNull(resolved);
        assertNotNull(resolved.getKey());
        assertNotNull(resolved.getValue());
        Optional<Path> op = session.getArtifactPath(resolved.getKey());
        assertTrue(op.isPresent());
        assertEquals(resolved.getValue(), op.get());
    }

    @Test

        // The root artifact may, or may not be resolved so we need to check before we attempt to resolve.
        // This is often an artifact like a POM that is taken from disk and we already have hold of the
        // file reference. But this may be a Maven Plugin that we need to resolve from a remote repository
        // as well as its dependencies.

/**
 * Resolves relative paths of a model against a specific base directory.
 *
 */
public interface ModelPathTranslator {

    /**
     * Resolves the well-known paths of the specified model against the given base directory. Paths within plugin
     * configuration are not processed.
     *
     * @param model The model whose paths should be resolved, may be {@code null}.

     * @return paths of all artifacts placed on the classpath.
     * @throws DependencyResolutionRequiredException if an artifact file is used, but has not been resolved
     */
    private List<String> getClasspathElements(final Predicate<String> scopeFilter, final boolean includeTestDir)
            throws DependencyResolutionRequiredException {

                Session session, String groupId, String artifactId, String version, Consumer<String> resolved)
                throws ModelResolverException {
            try {
                InternalSession internalSession = InternalSession.from(session);
                org.apache.maven.model.resolution.ModelResolver resolver =
                        getResolver(internalSession.toRepositories(internalSession.getRemoteRepositories()));

     * <p>
     * Shortcut for {@code getService(VersionResolver.class).resolve(...)}
     *
     * @param artifact the artifact for which to resolve the version
     * @return resolved version of the given artifact
     * @throws org.apache.maven.api.services.VersionResolverException if the resolution failed
     *
     * @see org.apache.maven.api.services.VersionResolver#resolve(Session, ArtifactCoordinate) (String)
     */
    @Nonnull

 * under the License.
 */
package org.apache.maven.api.services.model;

import java.nio.file.Path;

/**
 * Resolves relative paths against a specific base directory.
 *
 */
public interface PathTranslator {

    /**
     * Resolves the specified path against the given base directory. The resolved path will be absolute and uses the

import org.apache.maven.api.model.Parent;

/**
 * Resolves a POM from its coordinates.
 */
public interface ModelResolver extends Service {

    /**
     * Tries to resolve the POM for the specified parent coordinates possibly updating {@code parent}.
     *
     * @param session The session to use to resolve the model, must not be {@code null}.
     * @param parent The parent coordinates to resolve, must not be {@code null}.

          <type>String</type>
          <defaultValue>runtime</defaultValue>
          <description>
            Flags this Mojo as requiring the dependencies in the specified class path to be resolved before it can
            execute: {@code compile}, {@code runtime}, {@code test},
            {@code compile+runtime} (since Maven 3.0) or {@code runtime+system} (since Maven 3.0)
          </description>
        </field>