Github user catap commented on a diff in the pull request:
https://github.com/apache/spark/pull/4239#discussion_r23701196
--- Diff: core/src/main/scala/org/apache/spark/ui/jobs/JobPage.scala ---
@@ -32,7 +32,12 @@ private[ui] class JobPage(parent: JobsTab) extends
WebUIPage("job") {
def render(request: HttpServletRequest): Seq[Node] = {
listener.synchronized {
- val jobId = request.getParameter("id").toInt
+ val paramaterId = request.getParameter("id")
+ if (paramaterId.equals("")) {
--- End diff --
Yes, I updated the code to handle both cases.
BTW I test it only by hand because I not found any testcase for HTTP UI.
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