code: @Override
    public final void fill(final Map<String, Object> pAddParam,
      final Object pEntity, final String pFieldName,
        final String pFieldStrValue) throws Exception {
      if (SeSeller.class != pEntity.getClass()) {
        throw new ExceptionWithCode(ExceptionWithCode
          .CONFIGURATION_MISTAKE, "It's wrong service to fill that field: "
            + pEntity + "/" + pFieldName + "/" + pFieldStrValue);
      }
      SeSeller seSeller = (SeSeller) pEntity;
      if ("NULL".equals(pFieldStrValue)) {
        seSeller.setUserAuth(null);
        return;
      }
      try {
        UserTomcat ownedEntity = new UserTomcat();
        ownedEntity.setItsUser(pFieldStrValue);
        seSeller.setUserAuth(ownedEntity);
      } catch (Exception ex) {
        throw new ExceptionWithCode(ExceptionWithCode
          .WRONG_PARAMETER, "Can not fill field: " + pEntity + "/" + pFieldName
            + "/" + pFieldStrValue + ", " + ex.getMessage(), ex);
      }
    }
docs: <p>
  Fill given field of given entity according value represented as
  string.
  </p>
  @param pAddParam additional params
  @param pEntity Entity.
  @param pFieldName Field Name
  @param pFieldStrValue Field value
  @throws Exception - an exception