*
     * @see ArtifactCoordinateFactory#create(Session, String)
     */
    @Override
    public ArtifactCoordinate createArtifactCoordinate(String coordString) {
        return getService(ArtifactCoordinateFactory.class).create(this, coordString);
    }

    /**
     * Shortcut for <code>getService(CoordinateFactory.class).create(...)</code>
     *

h4. Generation of plugin metadata and packaging

To create the packaging for a plugin a special Maven packaging would be created with an accompanying life-cycle in order to create the plugin metadata required and create an archive of the plugin that can be consumed at runtime.

h3. Creation of an isolated classloader

            ProjectBuildingRequest request)
            throws InvalidRepositoryException;

    /**
     * Creates the project realm that hosts the build extensions of the specified model.
     *
     * @param project The project to create the project realm for, must not be {@code null}
     * @param model The model to create the project realm for, must not be {@code null}

import static org.apache.maven.internal.impl.Utils.nonNull;

@Named
@Singleton
public class DefaultArtifactFactory implements ArtifactFactory {
    @Override
    public Artifact create(@Nonnull ArtifactFactoryRequest request) {
        nonNull(request, "request");
        InternalSession session = InternalSession.from(request.getSession());
        ArtifactType type = null;

import static org.apache.maven.internal.impl.Utils.nonNull;

@Named
@Singleton
public class DefaultArtifactCoordinateFactory implements ArtifactCoordinateFactory {
    @Override
    public ArtifactCoordinate create(@Nonnull ArtifactCoordinateFactoryRequest request) {
        nonNull(request, "request");
        InternalSession session = InternalSession.from(request.getSession());
        if (request.getCoordinateString() != null) {

provide its own LogFactory implementation, if it so desires. An instance of this class will then be created, and cached per class loader. The Default LogFactory Implementation The Logging Package APIs include a default LogFactory implementation class ( org.apache.commons.logging.impl.LogFactoryImpl) that is selected if no other implementation class name can be discovered. Its primary purpose is to create (as necessary) and return Log instances in response to calls to the getInstance() method. The default...

   | However, this repository may have problems with heavy traffic at times, so people have mirrored
   | it to several places.
   |
   | That repository definition will have a unique id, so we can create a mirror reference for that
   | repository, to be used as an alternate download site. The mirror site will be the preferred
   | server for that repository.
   |-->
  <mirrors>
    <!-- mirror

     *
     * @see org.apache.maven.api.services.ArtifactCoordinateFactory#create(Session, String)
     */
    @Nonnull
    ArtifactCoordinate createArtifactCoordinate(@Nonnull String coordString);

    /**
     * Shortcut for {@code getService(ArtifactFactory.class).create(...)}.
     *
     * @param groupId the group identifier, or {@code null} is unspecified

    private final Map<MavenProject, Integer> order;

    private final Map<String, MavenProject> projects;

    /**
     * Creates a new project dependency graph based on the specified projects.
     *
     * @param projects The projects to create the dependency graph with
     * @throws DuplicateProjectException
     * @throws CycleDetectedException
     */

  patches should only highlight the actual difference, not being disturbed by any formatting issues:
  + Only use spaces for indentation.
  + Create minimal diffs - disable on save actions like reformat source code or organize imports.
    If you feel the source code should be reformatted, create a separate PR for this change.
  + Check for unnecessary whitespace with `git diff --check` before committing.