040000 tree 8d70f0f02f54b9192ac6e43258590c8364a0d0a1	cpp
040000 tree fbf357f4aea0accaacff5633116c0b45589744c0	java
040000 tree ac3f1c84658678fdc5ac8f5a8ff1d08ca22940f2	native
040000 tree f737b3daa189c409548c1e9144309eb085246289	protobuf
040000 tree f4a85a620b54039c627cf2ed6dd24f5f7571d3e5	tools