040000 tree 7b4872bca7e56812bb4ff9e2b4633fb747e78e97	cpp
040000 tree 664616881ee6667b0e0a5bb92b16ceb389855f94	java
040000 tree 4f71ca75c98e99afdb973337304ef03adc066ce2	native
040000 tree 94fe5646aadc9f0a9ddbb45194c07a692a670639	protobuf
040000 tree 1bf60fdeff1272cad7847fc0aab91e357bcd783c	tools