Spark UI SQL executions page throws NPE

 HTTP ERROR 500
 Problem accessing /SQL/. Reason:

Server Error
 Caused by:
 java.lang.NullPointerException
 at scala.collection.immutable.StringOps$.length$extension(StringOps.scala:47)
 at scala.collection.immutable.StringOps.length(StringOps.scala:47)
 at scala.collection.IndexedSeqOptimized$class.isEmpty(IndexedSeqOptimized.scala:27)
 at scala.collection.immutable.StringOps.isEmpty(StringOps.scala:29)
 at scala.collection.TraversableOnce$class.nonEmpty(TraversableOnce.scala:111)
 at scala.collection.immutable.StringOps.nonEmpty(StringOps.scala:29)
 at org.apache.spark.sql.execution.ui.ExecutionTable.descriptionCell(AllExecutionsPage.scala:182)
 at org.apache.spark.sql.execution.ui.ExecutionTable.row(AllExecutionsPage.scala:155)
 at org.apache.spark.sql.execution.ui.ExecutionTable$$anonfun$8.apply(AllExecutionsPage.scala:204)
 at org.apache.spark.sql.execution.ui.ExecutionTable$$anonfun$8.apply(AllExecutionsPage.scala:204)
 at org.apache.spark.ui.UIUtils$$anonfun$listingTable$2.apply(UIUtils.scala:339)
 at org.apache.spark.ui.UIUtils$$anonfun$listingTable$2.apply(UIUtils.scala:339)
 at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
 at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
 at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
 at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
 at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
 at scala.collection.AbstractTraversable.map(Traversable.scala:104)
 at org.apache.spark.ui.UIUtils$.listingTable(UIUtils.scala:339)
 at org.apache.spark.sql.execution.ui.ExecutionTable.toNodeSeq(AllExecutionsPage.scala:203)
 at org.apache.spark.sql.execution.ui.AllExecutionsPage.render(AllExecutionsPage.scala:67)
 at org.apache.spark.ui.WebUI$$anonfun$2.apply(WebUI.scala:82)
 at org.apache.spark.ui.WebUI$$anonfun$2.apply(WebUI.scala:82)
 at org.apache.spark.ui.JettyUtils$$anon$3.doGet(JettyUtils.scala:90)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
 at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
 at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584)
 at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
 at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
 at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
 at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
 at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
 at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
 at org.eclipse.jetty.server.Server.handle(Server.java:534)
 at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
 at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
 at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
 at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
 at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
 at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
 at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
 at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
 at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
 at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
 at java.lang.Thread.run(Thread.java:748)