this.missingParameters = new HashMap<>();

        if (mojoDescriptor.getParameters() != null) {
            for (Parameter param : mojoDescriptor.getParameters()) {
                if (param.isRequired()) {
                    missingParameters.put(param.getName(), param);
                }
            }
        }
    }

    public Collection<Parameter> getMissingParameters() {

    /**
     * Create a remote download repository.
     *
     * @param id        the unique identifier of the repository
     * @param url       the URL of the repository
     * @param layout    the layout of the repository
     * @param snapshots the policies to use for snapshots
     * @param releases  the policies to use for releases
     */
    public MavenArtifactRepository(
            String id,

    /**
     * Creates a request for the specified plugin using the given repository session and plugin repositories.
     *
     * @param plugin The plugin for which to resolve a version, must not be {@code null}.
     * @param session The repository session to use, must not be {@code null}.
     * @param repositories The plugin repositories to query, may be {@code null}.
     */
    public DefaultPluginVersionRequest(

    // -----------/
    // - Methods -/
    // -----------/

    /**
     * Method checkFieldWithDuplicate.
     *
     * @param parser a parser object.
     * @param parsed a parsed object.
     * @param alias a alias object.
     * @param tagName a tagName object.
     * @throws XmlPullParserException XmlPullParserException if
     * any.
     * @return boolean
     */

     *
     * @param content the message to log
     */
    void debug(CharSequence content);

    /**
     * Sends a message (and accompanying exception) to the user in the <b>debug</b> error level.
     * The error's stacktrace will be output when this error level is enabled.
     *
     * @param content the message to log
     * @param error the error that caused this log
     */

     *
     * @param model The model whose report plugin configuration should be expanded, must not be <code>null</code>.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */

    /**
     * Constructs a new BatchRequestException with the specified message and results.
     *
     * @param <REQ> The type of the request
     * @param <REP> The type of the response
     * @param message The error message describing the batch operation failure
     * @param allResults List of results from all attempted requests in the batch
     */

    /**
     * @param property the property to check
     * @return <code>true</code> if this is a valid property for this processor
     */
    boolean isValidProperty(String property);

    /**
     * This method is responsible for examining the request and possibly overwrite of the valid properties in the model
     *
     * @param modelProperties
     * @param request
     */

    AbstractGradleViolationRule(Map<String, Object> params) {
        AcceptedViolationsProvider acceptedApiChanges = ((AcceptedViolationsProvider) params.get("acceptedApiChanges"))
        this.acceptedApiChanges = acceptedApiChanges ? AcceptedApiChanges.fromAcceptedChangesMap(acceptedApiChanges.get()) : [:]

        // Tests will not supply these

     * filename of the source file.
     *
     * @param basedir the directory where the artifact is stored
     * @param finalName the name of the artifact without extension
     * @param artifact the artifact definition
     * @param deploymentRepository the repository to deploy to
     * @param localRepository the local repository to install into