040000 tree acc6c631e7b9cc17d7dcec1f7ac171e3fea4df64	go-client
040000 tree 752ac8ad7273e46789e853ea8ca216fdea97c20d	go-server
040000 tree f41efa3de6d1011c126990ce6ad0dee983d0c112	java-client
040000 tree 4d346ce48079d8cc77ea28c2a75576ec19f9b46f	java-server