Github user ajbozarth commented on a diff in the pull request:
https://github.com/apache/spark/pull/14158#discussion_r96740116
--- Diff: core/src/main/scala/org/apache/spark/ui/UIUtils.scala ---
@@ -326,7 +336,16 @@ private[spark] object UIUtils extends Logging {
val headerRow: Seq[Node] = {
headers.view.zipWithIndex.map { x =>
- <th width={colWidthAttr}
class={getClass(x._2)}>{getHeaderContent(x._1)}</th>
+ val toolTipOption = getToolTip(x._2)
+ if (toolTipOption.isEmpty) {
+ <th width={colWidthAttr}
class={getClass(x._2)}>{getHeaderContent(x._1)}</th>
+ } else {
+ val toolTip = toolTipOption.get
+ // scalastyle:off line.size.limit
--- End diff --
you shouldn't need this, scala can handle line wrapping for `Node` return
values
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