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040000 tree 77d18800a1e60087eea5d4f17e719da1b1e4ab96	java
040000 tree 4f71ca75c98e99afdb973337304ef03adc066ce2	native
040000 tree 47f0d588e44dd1497548493caf4104701db75ad7	protobuf
040000 tree 7cab4d2163c29207863345de339600dfb7772e60	tools