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040000 tree b56cd53f49b8ccdb54dab8000b86edf3ed2042c2	java
040000 tree b9a3eab671fc1777e49934e6dce373950f7497db	native
040000 tree c1c078bc33d25a1b595dcbccfd97851542d95e5d	protobuf
040000 tree a4e0a4a3c479400dda03784001c944905a8099f7	tools