Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/20727#discussion_r172358851 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/text/TextOptions.scala --- @@ -39,9 +39,12 @@ private[text] class TextOptions(@transient private val parameters: CaseInsensiti */ val wholeText = parameters.getOrElse(WHOLETEXT, "false").toBoolean + val lineSeparator: String = parameters.getOrElse(LINE_SEPARATOR, "\n") + require(lineSeparator.nonEmpty, s"'$LINE_SEPARATOR' cannot be an empty string.") --- End diff -- Nope, it's `nonEmpty` on `String`.
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