--- old/application/org.openjdk.jmc.flightrecorder.ui/src/main/java/org/openjdk/jmc/flightrecorder/ui/views/stacktrace/StacktraceView.java	2019-06-04 15:15:54.833477899 -0400
+++ new/application/org.openjdk.jmc.flightrecorder.ui/src/main/java/org/openjdk/jmc/flightrecorder/ui/views/stacktrace/StacktraceView.java	2019-06-04 15:15:54.763478423 -0400
@@ -641,7 +641,10 @@
 		if (selection instanceof IStructuredSelection) {
 			Object first = ((IStructuredSelection) selection).getFirstElement();
 			IItemCollection items = AdapterUtil.getAdapter(first, IItemCollection.class);
-			if (items != null && !items.equals(itemsToShow)) {
+			if(items == null) {
+				setItems(ItemCollectionToolkit.build(Stream.empty()));
+			}
+			else if (!items.equals(itemsToShow)) {
 				setItems(items);
 			}
 		}