static void checkHasFamilies(Mutation mutation) {
    Preconditions.checkArgument(mutation.numFamilies() > 0,
      "Invalid arguments to %s, zero columns specified", mutation.toString());
  }
Return retires + 1. The returned value will be in range [1, Integer.MAX_VALUE].
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionUtils.java