protected boolean isLockedBy(InternalDistributedMember owner, int lockId) {
      return isLeaseHeldBy(owner, lockId);
    }
Returns true if lock is currently leased by the owner with the specified lock id.
<p>
Caller must synchronize on this grant token.

Concurrency: protected by synchronization of *this* DLockGrantToken

@param owner the member to check for lock ownership
@param lockId the lock id that the member used for locking
@return true if lock is currently leased by the owner with the specified lock id
geode-core/src/main/java/org/apache/geode/distributed/internal/locks/DLockGrantor.java