040000 tree 23604b3d98ac719b9400634381fca1fb56cefc7b	cpp
040000 tree cf56e8ded69974412923910e116188d5bdd1ea66	java
040000 tree 36a3c1df6242160550e6700252c7fb71e41f9525	native
040000 tree 9588c801851f9cb87471573ec6bb1b5ab47a4b2c	protobuf
040000 tree 310110506349c0edd4c6ee12a3a60b20751d95a4	tools