@Override
    public boolean equals(Object o) {
        if (!(o instanceof TimelineLong)) return false;
        TimelineLong other = (TimelineLong) o;
        return value == other.value;
    }
This is a mutable long which can be snapshotted.
<br>
This class requires external synchronization.
server-common/src/main/java/org/apache/kafka/timeline/TimelineLong.java