code: @SuppressWarnings({"rawtypes", "unchecked"})
      private static Object mergeList(Object... objs) {
          List list = new ArrayList();
          for (Object li : objs) {
              List src = (List) li;
              for (Object obj : src) {
                  if (!list.contains(obj)) {
                      list.add(obj);
                  }
              }
          }
          return list;
      }
docs: list合并
  
  @param objs
  @return