docs: public void addField(String fieldName, String type, short flags,
          int value) {
          short fieldNameIndex = itsConstantPool.addUtf8(fieldName);
          short typeIndex = itsConstantPool.addUtf8(type);
          ClassFileField field = new ClassFileField(fieldNameIndex, typeIndex,
              flags);
          field.setAttributes(itsConstantPool.addUtf8("ConstantValue"),
              (short) 0,
              (short) 0,
              itsConstantPool.addConstant(value));
          itsFields.add(field);
      }