* Builds and attaches the supertypes of the given class
     */
    void build(ClassDoc classDoc) {
        ClassMetaData classMetaData = classDoc.getClassMetaData();
        String superClassName = classMetaData.getSuperClassName();
        if (superClassName != null && !superClassName.equals("org.gradle.api.DefaultTask")) {
            // Assume this is a class and so has implemented all properties and methods somewhere in the superclass hierarchy