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040000 tree 8af1472d5357def8f4bc6cc1881936b430da4c8a	java
040000 tree 06e4597122fb6021c4df00e892d9f5db624d4fef	native
040000 tree 2cd0190007c514fe62e09fb1ac42d0ff6c792f11	protobuf
040000 tree 90c4abec4c20089f26a366362161e879b8fa8a03	tools