Off-heap hashmap for Java 8

[theocs]

https://github.com/cfelde/BinaryOffheapHashMap

[jermo]

Interesting project but I wonder what it offers that doesn't already exist in HugeCollections [1] or MapDB [2].

[1] https://github.com/OpenHFT/HugeCollections [2] mapdb.org

[theocs → jermo]

Maybe I'm mistaken about the code, but it doesn't look like HugeCollections is storing the key off heap?

Example: Looking at the containsKey method on line 420 here: https://github.com/OpenHFT/HugeCollections/blob/master/colle...

A return map.containsKey(key2) is used, with that map being declared as

final Map<K, DirectStore> map = new HashMap<K, DirectStore>();

on line 232. That makes me believe maybe only map values are kept off-heap?