040000 tree c3027717cd950a04233326084ca35eb85739fb5a	cpp
040000 tree 8915e5a1857624d02f11b0a20c91c1fe1394eb71	java
040000 tree f6eb861b79e6989f7b8a8a72dbff2362b1127ae6	native
040000 tree 620c9000f66788228daf97fcee086f982ffdc8dc	protobuf
040000 tree 6d2b39fdb1275c13707c653ebb1eb93d7a0f79a6	tools