040000 tree 113a0a0a4d303bda87f1628495d3fb0b3cb2b860	cpp
040000 tree 3bb7a61da1a67312d691d1f97199091312592e06	java
040000 tree cb488783669c8c57b6bae9d4a0e0be0a72f863f1	native
040000 tree 15e153d93cd3ee5772a29d56687dfa26cfad96a8	protobuf
040000 tree 031b51bf235f8a383f608de7b6f333525e1dc667	tools