public Requirement(String role, String roleHint) {
        this.role = role;
        this.roleHint = roleHint;
    }

    public String getRole() {
        return role;
    }

    public String getRoleHint() {
        return roleHint;
    }

    /**
     * Creates a shallow copy of this requirement.
     */
    @Override
    public Requirement clone() {
        try {

    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;
    }

    private static String format(List<Parameter> parameters) {

        assertEquals("3.0.0", mp.getSince());

        ComponentRequirement cr = md.getRequirements().get(0);

        assertEquals("org.codehaus.plexus.archiver.Archiver", cr.getRole());
        assertEquals("jar", cr.getRoleHint());
        assertEquals("jarArchiver", cr.getFieldName());

        ComponentDependency cd = pd.getDependencies().get(0);

        assertEquals("org.apache.maven", cd.getGroupId());