- It avoids creating unnecessary Strings objects and handles with the station names with its djb2 hashes instead - Initializes hashmaps with capacity and load factor - Adds -XX:+AlwaysPreTouch
- It avoids creating unnecessary Strings objects and handles with the station names with its djb2 hashes instead - Initializes hashmaps with capacity and load factor - Adds -XX:+AlwaysPreTouch