"The parameters " + format(parameters) + " for goal " + mojo.getRoleHint() + " are missing or invalid");

        this.mojo = mojo;

        this.parameters = parameters;
    }

    private static String format(List<Parameter> parameters) {
        StringBuilder buffer = new StringBuilder(128);
        if (parameters != null) {
            for (Parameter parameter : parameters) {

    public void setParameters(List<Parameter> parameters) throws DuplicateParameterException {
        this.parameters.clear();
        for (Parameter parameter : parameters) {
            addParameter(parameter);
        }
    }

    /**
     * @param parameter add a new parameter
     * @throws DuplicateParameterException if any
     */
    public void addParameter(Parameter parameter) throws DuplicateParameterException {

    }

    public void test_convertParameterMap() {
        String parameters;
        Map<String, String> parameterMap;

        parameters = "";
        parameterMap = ParameterUtil.parse(parameters);
        assertEquals(0, parameterMap.size());

        parameters = "domain";
        parameterMap = ParameterUtil.parse(parameters);
        assertEquals(1, parameterMap.size());

        this.hostname = value;
    }

    public String getParameters() {
        checkSpecifiedProperty("parameters");
        return convertEmptyToNull(parameters);
    }

    public void setParameters(String value) {
        registerModifiedProperty("parameters");
        this.parameters = value;
    }

    public String getPassword() {
        checkSpecifiedProperty("password");

     */
    @Nonnull
    String defaultValue() default "";

    /**
     * is the parameter required?
     * @return <code>true</code> if the Mojo should fail when the parameter cannot be injected
     */
    boolean required() default false;

    /**
     * Specifies that this parameter cannot be configured directly by the user (as in the case of POM-specified

     * Builds a project descriptor from the specified POM file.
     *
     * @param projectFile The POM file to build the project from, must not be {@code null}.
     * @param request The project building request that holds further parameters, must not be {@code null}.
     * @return The result of the project building, never {@code null}.
     * @throws ProjectBuildingException If the project descriptor could not be successfully built.
     */

        // Parameters
        // ----------------------------------------------------------------------

        PlexusConfiguration[] parameterConfigurations = c.getChild("parameters").getChildren("parameter");

        List<Parameter> parameters = new ArrayList<>();

        for (PlexusConfiguration d : parameterConfigurations) {
            Parameter parameter = new Parameter();

        Parameter[] parameters = executable.getParameters();
        Key<?>[] dependencies = new Key<?>[parameters.length];
        if (parameters.length == 0) {
            return dependencies;
        }

        Type type = parameters[0].getParameterizedType();
        Parameter parameter = parameters[0];
        dependencies[0] = keyOf(container, type, parameter);

/**
 * Common implementations for plugin parameters configuration validation that relies on Mojo descriptor (leaves out
 * core parameters by default).
 *
 */
abstract class AbstractMavenPluginDescriptorSourcedParametersValidator extends AbstractMavenPluginParametersValidator {

    // plugin author can provide @Parameter( property = "session" ) in this case property will always evaluate

     * <pre>
     * message: {item} is numeric value out of bounds (&lt;{integer} digits&gt;.&lt;{fraction} digits&gt; expected).
     * </pre>
     * @param property The property name for the message. (NotNull)
     * @param fraction The parameter fraction for message. (NotNull)
     * @param integer The parameter integer for message. (NotNull)
     * @return this. (NotNull)