As others have mentioned, there's the diamond operator which has been around since Java 7. > if you don't care what the type of map is You can use raw types,

As others have mentioned, there's the diamond operator which has been around since Java 7. > if you don't care what the type of map is You can use raw types, it works perfectly fine (just generates a compiler warning). For explicitly being unspecific, you can also use a type wildcard (`?`).