public void updateAcquirerInfo(final Acquirer acquirer) {
            if (acquirer == null) {
                return;
            }
            acquirer.setFencingToken(this.fencingToken);
        }
Returns the 'lock-context' of current lock owner.
jraft-rheakv/rheakv-core/src/main/java/com/alipay/sofa/jraft/rhea/util/concurrent/DistributedLock.java