040000 tree 7d8293d1df4e4ecc48bd51e5ff95d38cd6b7fb07	gen
040000 tree 5f82ac54dbb5a43587df64f2019961029d4872f8	java
040000 tree 9c65c8583c0474680bbbda8c57c6caec2016868f	main
040000 tree e6936d72e2fb29f4d10de5a7f575909da47945e9	protobuf
040000 tree 4f33fdbb73fc93ba1bed2c26a367aad48725e2e1	test