@Override
    public String toString() {
      return "RecoveryLock@" + System.identityHashCode(this) + "lockName=" + super.lockName
          + " lockService=" + super.lockService;
    }
Ask the grantor who has the lock

@return the ID of the member holding the lock
geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegion.java