public List<String> getDbiNames() {
        return env.getDbiNames().stream()
                .map(bytes ->
                        new String(bytes, StandardCharsets.UTF_8))
                .collect(Collectors.toList());
    }
Deletes {@link LmdbEnv} from the filesystem if it is already closed.
stroom-lmdb/src/main/java/stroom/lmdb/LmdbEnv.java