public static TimeRange until(long maxStamp) {
    check(INITIAL_MIN_TIMESTAMP, maxStamp);
    return new TimeRange(INITIAL_MIN_TIMESTAMP, maxStamp);
  }
Represents the time interval [0, maxStamp)
@param maxStamp the minimum timestamp value, exclusive
hbase-common/src/main/java/org/apache/hadoop/hbase/io/TimeRange.java