@Target(ElementType.TYPE)
@Inherited
public @interface Mojo {
    /**
     * goal name (required).
     * @return the goal name
     */
    @Nonnull
    String name();

    /**
     * default phase to bind your mojo.
     * @return the default phase
     */
    @Nonnull
    String defaultPhase() default "";

    /**
     * does your mojo requires a project to be executed?
     * @return requires a project

 * a MojoException if error conditions occur.<br>
 *
 * @since 4.0.0
 */
@Experimental
@FunctionalInterface
@Consumer
public interface Mojo {
    /**
     * Perform whatever build-process behavior this <code>Mojo</code> implements.<br>
     * This is the main trigger for the <code>Mojo</code> inside the <code>Maven</code> system, and allows

    private final Mojo mojo;

    private final Throwable cause;

    public MojoExecutionEvent(MavenSession session, MavenProject project, MojoExecution mojoExecution, Mojo mojo) {
        this(session, project, mojoExecution, mojo, null);
    }

    public MojoExecutionEvent(
            MavenSession session, MavenProject project, MojoExecution mojoExecution, Mojo mojo, Throwable cause) {

                ((ContextEnabled) mojo).setPluginContext(pluginContext);
            }
        }

        if (mojo instanceof Mojo) {
            Logger mojoLogger = LoggerFactory.getLogger(mojoDescriptor.getImplementation());
            ((Mojo) mojo).setLog(new MojoLogWrapper(mojoLogger));
        }

        if (mojo instanceof Contextualizable) {

    private final MojoDescriptor mojo;

    public PluginParameterException(MojoDescriptor mojo, List<Parameter> parameters) {
        super(
                mojo.getPluginDescriptor(),
                "The parameters " + format(parameters) + " for goal " + mojo.getRoleHint() + " are missing or invalid");

        this.mojo = mojo;

        this.parameters = parameters;
    }

          <description>
            The goal name for the Mojo, that users will reference from the command line to execute the Mojo directly,
            or inside a POM in order to provide Mojo-specific configuration.
          </description>
        </field>
        <field>
          <name>description</name>
          <version>1.0.0+</version>
          <type>String</type>

public enum EventType {
    PROJECT_DISCOVERY_STARTED,
    SESSION_STARTED,
    SESSION_ENDED,
    PROJECT_SKIPPED,
    PROJECT_STARTED,
    PROJECT_SUCCEEDED,
    PROJECT_FAILED,
    MOJO_SKIPPED,
    MOJO_STARTED,
    MOJO_SUCCEEDED,
    MOJO_FAILED,
    FORK_STARTED,
    FORK_SUCCEEDED,
    FORK_FAILED,
    FORKED_PROJECT_STARTED,
    FORKED_PROJECT_SUCCEEDED,
    FORKED_PROJECT_FAILED,

import org.apache.maven.project.MavenProject;

/**
 * <p>
 * A MojoExecutionConfigurator is responsible for creating the configuration for Mojo based on configuration for a Mojo
 * in the MavenProject and the default configuration for the Mojo from the containing plugin's plugin.xml descriptor.
 * </p>
 * <strong>Note:</strong> This interface is part of work in progress and can be changed or removed without notice.

class ValidatingConfigurationListener implements ConfigurationListener {
    private final Object mojo;

    private final ConfigurationListener delegate;

    private final Map<String, Parameter> missingParameters;

    ValidatingConfigurationListener(Object mojo, MojoDescriptor mojoDescriptor, ConfigurationListener delegate) {
        this.mojo = mojo;
        this.delegate = delegate;
        this.missingParameters = new HashMap<>();

    /**
     * Looks up the mojo for the specified mojo execution and populates its parameters from the configuration given by
     * the mojo execution. The mojo/plugin descriptor associated with the mojo execution provides the class realm to
     * look up the mojo from. <strong>Warning:</strong> The returned mojo instance must be released via