@Override
    public boolean tryLock() {
      try {
        return getLockService().suspendLocking(0);
      } catch (IllegalStateException ex) {
        lockCheckReadiness();
        throw ex;
      }
    }
Returns the lock timeout value to use for DistributedLock and RegionDistributedLock. -1 is
supported as a lock that never times out.
geode-core/src/main/java/org/apache/geode/internal/cache/DistributedRegion.java