static void writeSlotWithDefaultMethod(
      ClassMetaDataSlot slot,
      ObjectOutput out,
      Object obj,
      ObjectSubstitutionInterface substitution)
      throws IOException {
    ObjectOutputStream oos = new ObjectOutputStreamProxy(out, obj, slot, substitution);
    ObjectOutputStream.PutField putField = oos.putFields();
    ClassMetadataField[] fields = slot.getFields();
    FieldsManager fieldsManager = FieldsManager.getFieldsManager();

    for (int fieldNR = 0; fieldNR < fields.length; fieldNR++) {
      ClassMetadataField classMetadataField = fields[fieldNR];
      Class type = classMetadataField.getField().getType();
      String fieldName = classMetadataField.getFieldName();

      if (type == Boolean.TYPE) {
        putField.put(fieldName, fieldsManager.getBoolean(obj, classMetadataField));
      } else if (type == Byte.TYPE) {
        putField.put(fieldName, fieldsManager.getByte(obj, classMetadataField));
      } else if (type == Character.TYPE) {
        putField.put(fieldName, fieldsManager.getCharacter(obj, classMetadataField));
      } else if (type == Short.TYPE) {
        putField.put(fieldName, fieldsManager.getShort(obj, classMetadataField));
      } else if (type == Integer.TYPE) {
        putField.put(fieldName, fieldsManager.getInt(obj, classMetadataField));
      } else if (type == Long.TYPE) {
        putField.put(fieldName, fieldsManager.getLong(obj, classMetadataField));
      } else if (type == Float.TYPE) {
        putField.put(fieldName, fieldsManager.getFloat(obj, classMetadataField));
      } else if (type == Double.TYPE) {
        putField.put(fieldName, fieldsManager.getDouble(obj, classMetadataField));
      } else {
        Object value = fieldsManager.getObject(obj, classMetadataField);
        putField.put(fieldName, value);
      }
    }

    oos.writeFields();
  }