040000 tree 67ebfaa71c0b540bd1e85cf790b5d6011d495ade	cpp
040000 tree 7a2283e7f4109190f4304e949a6f8e9995f32af8	java
040000 tree 06e4597122fb6021c4df00e892d9f5db624d4fef	native
040000 tree 5d9c5c9a0470bd74cf7ec8811bb651bb6d60f7c3	protobuf
040000 tree 90c4abec4c20089f26a366362161e879b8fa8a03	tools