Github user shivaram commented on a diff in the pull request:
https://github.com/apache/spark/pull/7139#discussion_r35937520
--- Diff: core/src/main/scala/org/apache/spark/api/r/RBackend.scala ---
@@ -28,6 +28,7 @@ import io.netty.channel.socket.SocketChannel
import io.netty.channel.socket.nio.NioServerSocketChannel
import io.netty.handler.codec.LengthFieldBasedFrameDecoder
import io.netty.handler.codec.bytes.{ByteArrayDecoder, ByteArrayEncoder}
+import org.apache.spark.deploy.RPackageUtils
--- End diff --
Unused import ?
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