@Override
        public String toString() {
            return "Owner{" + "id='" + id + '\'' + ", deadlineMillis=" + deadlineMillis + ", remainingMillis="
                   + remainingMillis + ", fencingToken=" + fencingToken + ", acquires=" + acquires + ", context="
                   + BytesUtil.toHex(context) + ", success=" + success + '}';
        }
Returns the 'lock-context' of current lock owner.
jraft-rheakv/rheakv-core/src/main/java/com/alipay/sofa/jraft/rhea/util/concurrent/DistributedLock.java