040000 tree 90d8af105d083aa620c1e2b441c0cf67eb9f5130	go-client
040000 tree 0b30aa5d49fbe06265cd08dbb65f906576d442db	go-server
040000 tree 9c497c2fee03aedf690807dc544a6ad53d9633f6	java-client
040000 tree 1051bc9149d27cd855be07cd12a21356fcaa9f2a	java-server