*/
    boolean required() default false;

    /**
     * Specifies that this parameter cannot be configured directly by the user (as in the case of POM-specified
     * configuration). This is useful when you want to force the user to use common POM elements rather than plugin
     * configurations, as in the case where you want to use the artifact's final name as a parameter. In this case, you

import org.apache.maven.internal.impl.model.DefaultModelTransformerContext.Holder;

/**
 * Builds up the transformer context.
 * After the buildplan is ready, the build()-method returns the immutable context useful during distribution.
 * This is an inner class, as it must be able to call readRawModel()
 *
 * @since 4.0.0
 */
class DefaultModelTransformerContextBuilder implements ModelTransformerContextBuilder {

          <version>1.0.0+</version>
          <type>String</type>
          <description>
            Specifies an alias which can be used to configure this parameter from the POM.
            This is primarily useful to improve user-friendliness, where Mojo field names are not intuitive to the
            user or are otherwise not conducive to configuration via the POM.
          </description>
        </field>
        <field>

     * on the command line.
     */
    private List<MavenProject> projects;

    /**
     * The full set of projects before any potential constraining by --projects. Useful in the case where you want to
     * build a smaller set of projects but perform other operations in the context of your reactor.
     */
    private List<MavenProject> allProjects;

    private MavenProject topLevelProject;

        return recommendedVersion;
    }

    public List<Restriction> getRestrictions() {
        return restrictions;
    }

    /**
     * @deprecated VersionRange is immutable, cloning is not useful and even more an issue against the cache
     * @return a clone
     */
    @Deprecated
    public VersionRange cloneOf() {
        List<Restriction> copiedRestrictions = null;

        if (restrictions != null) {

  maven-artifact. Usage of maven-wagon will be determined by an offline-aware
  manager.

* Assumptions: What is Offline?

  For the purposes of determining the areas sensitive to offline status,
  it is definitely useful to define what the offline state really means.

  [[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.

  <packaging>pom</packaging>
  <version>1.1.6</version>
  <name>Plexus Components Parent Project</name>
  <!--
    TODO: should this be pushed down to all the dependencies?
      - a more stable API JAR may be useful, for the interfaces and classes such as AbstractLogEnabled
  -->
  <dependencies>
    <dependency>
      <groupId>org.codehaus.plexus</groupId>
      <artifactId>plexus-container-default</artifactId>

 * <p>
 * The values in the model remain untouched but during the process of building a project notions like inheritance and
 * interpolation can be added. This allows to have an entity which is useful in a runtime while preserving the model so
 * that it can be marshalled and unmarshalled without being tainted by runtime requirements.
 * </p>
 * <p>

 */

// PluginNotFoundException, PluginResolutionException, PluginDescriptorParsingException,
// CycleDetectedInPluginGraphException;

/**
 * Transform an exception into useful end-user message.
 */
@Named
@Singleton
public class DefaultExceptionHandler implements ExceptionHandler {

    public ExceptionSummary handleException(Throwable exception) {
        return handle("", exception);

     */
    @Test
    void testAggregatorMojo() throws Exception {}

    /**
     * This is the case where a Mojo needs the lifecycle run to a certain phase before it can do
     * anything useful.
     */
    @Test
    void testMojoThatRequiresExecutionToAGivenPhaseBeforeExecutingItself() throws Exception {}

    // test that mojo which does not require dependency resolution trigger no downloading of dependencies