040000 tree 97b9b0b5ca710389f7c7222b5ea54ff4c29d71fc	cpp
040000 tree a4e2c5b169725de3c63143dccf48e177f3ba952e	java
040000 tree bbdb73d17c26555c134b688da497a762ee44831a	native
040000 tree b1c072c2517ea2098f21b7fc2932361ab40bc2af	protobuf
040000 tree 27a7619af46760e34eb1aeb64f0103fe24bb92f2	tools