public ConstantFieldBuilder(ClassDoc classdoc) {
            this.classdoc = classdoc;
            visibleMemberMapFields = new VisibleMemberMap(classdoc,
                VisibleMemberMap.FIELDS, configuration.nodeprecated);
            visibleMemberMapEnumConst = new VisibleMemberMap(classdoc,
                VisibleMemberMap.ENUM_CONSTANTS, configuration.nodeprecated);
        }