apollo-core/src/main/java/com/ctrip/framework/apollo/core/utils/StringUtils.java/StringUtils/isContainEmpty
class StringUtils:  public static boolean isContainEmpty(String... args){
    if (args == null){
      return false;
    }

    for (String arg: args){
      if (arg == null || "".equals(arg)){
        return true;
      }
    }

    return false;
  }