code: private void unsafeUnload(LCMSDataSubset subset) {
      //System.err.println("=========== UNLOAD (unsafe) CALLED ***********************");
      // getting subsets loaded by all other users of this LCMSData
      ConcurrentMap<Object, Set<LCMSDataSubset>> otherUserMaps = cache.asMap();
      HashSet<LCMSDataSubset> otherUsersSubsetsCombined = new HashSet<>();
      for (Map.Entry<Object, Set<LCMSDataSubset>> entry : otherUserMaps.entrySet()) {
        Set<LCMSDataSubset> otherUserSubsets = entry.getValue();
        otherUsersSubsetsCombined.addAll(otherUserSubsets);
  //            for (LCMSDataSubset otherSubset : otherUserSubsets) {
  //                if (otherSubset != subset) {
  //                    otherUsersSubsetsCombined.add(otherSubset);
  //                }
  //            }
      }
      if (otherUsersSubsetsCombined.isEmpty()) {
        scans.unloadData(subset);
      } else {
        scans.unloadData(subset, otherUsersSubsetsCombined);
      }
    }
docs: Unloads the subset without checking the user. It's required by our user-tracking automatic
  cleanup, if a user was GCed and it hasn't unloaded its subsets, we detect the GC automatically,
  and unload all the subsets, used by this killed user. It will still check for other users using
  scans from this subset.