040000 tree 4c8ffa9c01255e311b0bdfd2da32d0e63f59eebf	cpp
040000 tree b38211a5c9b4e4e7f7092cc9a3f3a5c5b86caccc	java
040000 tree 4f71ca75c98e99afdb973337304ef03adc066ce2	native
040000 tree 9e5bf4988f3c99a1aedce901615f96703a6db409	protobuf
040000 tree 7cab4d2163c29207863345de339600dfb7772e60	tools