Oak (Off-heap Allocated Keys) is a scalable, concurrent, in-memory Key-Value (KV) map. OakMap is a concurrent Key-Value Map that keeps all keys and values off-heap. This allows storing more data (up to 3 times more data) compare to using the standard JVM heap management, albeit using the same memory footprint. OakMap implements the industry-standard Java8 ConcurrentNavigableMap API. It provides st