diff -r 2c3cc4b01880 -r c16ac7a2eba4 test/jdk/jdk/jfr/api/event/TestEventDuration.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/event/TestEventDuration.java	Wed Oct 30 19:43:52 2019 +0100
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package jdk.jfr.api.event;
+
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.jfr.Events;
+import jdk.test.lib.jfr.SimpleEvent;
+
+/**
+ * @test
+ * @summary Tests that a duration is recorded.
+ * @key jfr
+ * @requires vm.hasJFR
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.event.TestEventDuration
+ */
+public class TestEventDuration {
+
+    public static int counter;
+
+    public static void main(String[] args) throws Exception {
+
+        try(Recording r = new Recording()) {
+            r.start();
+            SimpleEvent e = new SimpleEvent();
+            e.begin();
+            for (int i = 0; i < 10_000;i++) {
+                counter+=i;
+            }
+            e.end();
+            e.commit();
+
+            r.stop();
+            List<RecordedEvent> events = Events.fromRecording(r);
+            if (events.get(0).getDuration().toNanos() < 1) {
+                throw new AssertionError("Expected a duration");
+            }
+        }
+
+    }
+
+}