new CleanLifecycle(),
                new DefaultLifecycle(),
                new SiteLifecycle(),
                new WrapperLifecycle());
        // validate lifecycle
        for (Lifecycle lifecycle : this) {
            Set<String> set = new HashSet<>();
            lifecycle.phases().forEach(phase -> {
                if (!set.add(phase.name())) {

import java.util.List;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.plugin.descriptor.PluginDescriptor;

/**
 * MavenPluginValidator
 */
public interface MavenPluginValidator {

    void validate(Artifact pluginArtifact, PluginDescriptor pluginDescriptor, List<String> errors);

     */
    protected BuildSummary(MavenProject project, long time) {
        this.project = Objects.requireNonNull(project, "project cannot be null");
        // TODO Validate for < 0?
        this.time = time;
    }

    /**
     * Gets the project being summarized.
     *
     * @return The project being summarized, never {@code null}.
     */

          <type>java.lang.String[]</type>
          <required>false</required>
          <editable>true</editable>
        </parameter>
      </parameters>

- we need to know what came from the POM, and validate those
- plugin in any default values
- check to see if anything is missing

RuleMemberValidator { public static final RuleMemberValidator CLASS_RULE_VALIDATOR; public static final RuleMemberValidator RULE_VALIDATOR; public static final RuleMemberValidator CLASS_RULE_METHOD_VALIDATOR; public static final RuleMemberValidator RULE_METHOD_VALIDATOR; private final Class annotation; private final boolean methods; private final java.util.List validatorStrategies; void RuleMemberValidator(RuleMemberValidator$Builder); public void validate(org.junit.runners.model.TestClass, java.util.List); private...

    ProjectBuildingRequest setResolveDependencies(boolean resolveDependencies);

    boolean isResolveDependencies();

    /**
     * Controls the level of validation to perform on processed models. By default, models are validated in strict mode.
     *
     * @param validationLevel The level of validation to perform on processed models, e.g.
     *            {@link org.apache.maven.model.building.ModelBuildingRequest#VALIDATION_LEVEL_STRICT}.

        return "uses deprecated parameter expression '" + parameter.getDefaultValue() + "': "
                + DEPRECATED_CORE_PARAMETERS.get(parameter.getDefaultValue());
    }

    @Override
    protected void doValidate(
            MavenSession mavenSession,
            MojoDescriptor mojoDescriptor,
            Class<?> mojoClass,
            PlexusConfiguration pomConfiguration,
            ExpressionEvaluator expressionEvaluator) {

            return !(isLocal(url.getHost()) || url.getProtocol().equals("file"));
        } catch (MalformedURLException e) {
            // bad url just skip it here. It should have been validated already, but the wagon lookup will deal with it
            return false;
        }
    }

    private static boolean isLocal(String host) {
        return "localhost".equals(host) || "127.0.0.1".equals(host);

    @Inject
    Maven2DependenciesValidator(PluginValidationManager pluginValidationManager) {
        super(pluginValidationManager);
    }

    @Override
    protected void doValidate(
            RepositorySystemSession session,
            Artifact pluginArtifact,
            ArtifactDescriptorResult artifactDescriptorResult) {

    }

    @Override
    protected String getParameterLogReason(Parameter parameter) {
        return "is deprecated: " + parameter.getDeprecated();
    }

    @Override
    protected void doValidate(
            MavenSession mavenSession,
            MojoDescriptor mojoDescriptor,
            Class<?> mojoClass,
            PlexusConfiguration pomConfiguration,
            ExpressionEvaluator expressionEvaluator) {