Fix SPARK-15209

Author: JoshRosen

core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala

@@ -99,7 +99,7 @@ private[ui] class AllJobsPage(parent: JobsTab) extends WebUIPage("") {
            |  'end': new Date(${completionTime}),
            |  'content': '<div class="application-timeline-content"' +
            |     'data-html="true" data-placement="top" data-toggle="tooltip"' +
-           |     'data-title="${Utility.escape(escapedDesc)} (Job ${jobId})<br>' +
+           |     "data-title=\\"${Utility.escape(escapedDesc)} (Job ${jobId})<br>" +
            |     'Status: ${status}<br>' +
            |     'Submitted: ${UIUtils.formatDate(new Date(submissionTime))}' +
            |     '${
@@ -109,7 +109,7 @@ private[ui] class AllJobsPage(parent: JobsTab) extends WebUIPage("") {
                        ""
                      }
                   }">' +
-           |    '${escapedDesc} (Job ${jobId})</div>'
+           |    "${escapedDesc} (Job ${jobId})</div>"
            |}
          """.stripMargin
       jobEventJsonAsStr

core/src/main/scala/org/apache/spark/ui/jobs/JobPage.scala

@@ -74,7 +74,7 @@ private[ui] class JobPage(parent: JobsTab) extends WebUIPage("job") {
          |  'end': new Date(${completionTime}),
          |  'content': '<div class="job-timeline-content" data-toggle="tooltip"' +
          |   'data-placement="top" data-html="true"' +
-         |   'data-title="${Utility.escape(escapedName)} (Stage ${stageId}.${attemptId})<br>' +
+         |   "data-title=\\"${Utility.escape(escapedName)} (Stage ${stageId}.${attemptId})<br>" +
          |   'Status: ${status.toUpperCase}<br>' +
          |   'Submitted: ${UIUtils.formatDate(new Date(submissionTime))}' +
          |   '${
@@ -84,7 +84,7 @@ private[ui] class JobPage(parent: JobsTab) extends WebUIPage("job") {
                    ""
                  }
               }">' +
-         |    '${escapedName} (Stage ${stageId}.${attemptId})</div>',
+         |    "${escapedName} (Stage ${stageId}.${attemptId})</div>",
          |}
        """.stripMargin
     }