Github user srowen commented on a diff in the pull request: https://github.com/apache/spark/pull/7862#discussion_r36040593 --- Diff: streaming/src/test/java/org/apache/spark/streaming/JavaWriteAheadLogSuite.java --- @@ -17,13 +17,15 @@ package org.apache.spark.streaming; +import java.nio.charset.StandardCharsets; import java.util.ArrayList; import java.nio.ByteBuffer; import java.util.Arrays; -import java.util.Collection; +import java.util.Iterator; +import java.util.List; -import org.apache.commons.collections.CollectionUtils; -import org.apache.commons.collections.Transformer; +import com.google.common.base.Function; --- End diff -- There were a few actual warnings fixed up here, but I think this file needed a fair bit of cleanup and I just did it: - Get rid of single use of Commons Collections transformer methods in favor of Guava - `.java` files almost never have two top level classes - Always set character encoding when converting strings to/from bytes
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