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040000 tree e1132d8a52ddae3a98588a72eba0d3101bacd682	grpc-1_21_0
040000 tree 18c9434ae2eb990bec9a019a89042a5d5598329f	guava-26_0-jre
040000 tree f06c789f3145681478d81a2773d5b6ce7cfd8da9	sdks-java-extensions-protobuf