slumberdb/slumberdb-leveldb/src/main/java/org/boon/slumberdb/leveldb/LevelDBKeyValueStore.java
@Override
    public void close() {
        try {
            flush();
            database.close();
        } catch (Exception e) {
            Exceptions.handle(e);
        }
    }
@Override
    public void close() {
        try {
            flush();
            database.close();
        } catch (Exception e) {
            Exceptions.handle(e);
        }
    }
Close the database connection.