Awesome

HPPC: High Performance Primitive Collections

Collections of primitive types (maps, sets, stacks, lists) with open internals and an API twist (no java.util.collections.* compatibility).

See the following for more information:

• Wiki: https://github.com/carrotsearch/hppc/wiki
• Bugs (github): https://github.com/carrotsearch/hppc/issues

See ALTERNATIVES.txt if you're just shopping around.

See LICENSE.txt to make your company's lawyer happy.

See CHANGES.txt for API changes and updates.

(c) Carrot Search s.c. (and contributors), https://carrotsearch.com/