040000 tree 3c3d4fb0dc08d6c224cbe5bcfaf988f454aad3f2	cpp
040000 tree 629707a10a35d4c848458bbed7e37dc6b61273c4	java
040000 tree 462bff2b19d9e2e7ce398d107b17e3c39c7bf818	native
040000 tree b58b4124c8c13662fd12da3ab58f4479141379a8	protobuf
040000 tree bba0aa378abcafe2d2750f565b0ec4b113482180	tools