code: private ResultMapping buildResultMapping(Configuration configuration, String property, String column, Class<?> javaType, List<ResultFlag> flags) {
      ResultMapping.Builder builder = new ResultMapping.Builder(configuration, property, column, javaType);
      builder.flags(flags == null ? new ArrayList<ResultFlag>() : flags);
      builder.composites(new ArrayList<ResultMapping>());
      builder.notNullColumns(new HashSet<String>());
      return builder.build();
    }
docs: 构建ResultMapping对象
  
  @param configuration
  @param property
  @param column
  @param javaType
  @param flags
  @return