--- /dev/null	2020-03-31 11:17:06.905646750 +0200
+++ new/test/jdk/jdk/jfr/event/gc/detailed/TestGCPhaseConcurrent.java	2020-04-01 10:54:52.365019174 +0200
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2020, 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.event.gc.detailed;
+
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.Events;
+
+/**
+ * @test TestGCPhaseConcurrent
+ * @requires vm.hasJFR & vm.gc.Z
+ * @key jfr
+ * @library /test/lib /test/jdk /test/hotspot/jtreg
+ * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xms32M -Xmx256M jdk.jfr.event.gc.detailed.TestGCPhaseConcurrent
+ */
+public class TestGCPhaseConcurrent {
+    public static void main(String[] args) throws Exception {
+        try (Recording recording = new Recording()) {
+            // Activate the event we are interested in and start recording
+            recording.enable(EventNames.GCPhaseConcurrent);
+            recording.enable(EventNames.GCPhaseConcurrentLevel1);
+            recording.start();
+
+            // Run GC to get concurrent phases
+            System.gc();
+
+            recording.stop();
+
+            // Verify recording
+            List<RecordedEvent> events = Events.fromRecording(recording);
+            Events.hasEvents(events);
+            Events.hasEvent(events, EventNames.GCPhaseConcurrent);
+            Events.hasEvent(events, EventNames.GCPhaseConcurrentLevel1);
+
+            for (RecordedEvent event : events) {
+                System.out.println("Event:" + event);
+                Events.assertField(event, "name").notEmpty();
+            }
+        }
+    }
+}