@SuppressWarnings({"unchecked", "rawtypes"})
    public List<MojoDescriptor> getMojos() {
        return (List) getComponents();
    }

    public void addMojo(MojoDescriptor mojoDescriptor) throws DuplicateMojoDescriptorException {
        MojoDescriptor existing = null;
        // this relies heavily on the equals() and hashCode() for ComponentDescriptor,
        // which uses role:roleHint for identity...and roleHint == goalPrefix:goal.