040000 tree a6857a4275c01d8434b6dc081695f15c0c2c86f4	cpp
040000 tree e86ba4879ac9cef03debe01fd842bf497562ced1	java
040000 tree 9b800a1353005bcc302e8c9ed97309c5c33f088b	native
040000 tree 8d083e46fd3b94c7b6fae04d1dcfe51d00f9c8a1	protobuf
040000 tree b785e267533053eb0437d3461ab7ef5296768e2a	tools