--- /dev/null	2018-06-17 23:18:20.806999507 +0800
+++ new/test/jdk/jfr/api/recording/state/TestStateIdenticalListeners.java	2019-01-29 11:02:19.881886980 +0800
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2018, 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.recording.state;
+
+import static jdk.testlibrary.Asserts.assertEquals;
+
+import jdk.jfr.FlightRecorder;
+import jdk.jfr.FlightRecorderListener;
+import jdk.jfr.Recording;
+
+/*
+ * @test
+ * @summary Test Recording state with concurrent recordings
+ * @key jfr
+ * @library /lib/testlibrary
+ * @run main/othervm jdk.jfr.api.recording.state.TestStateIdenticalListeners
+ */
+public class TestStateIdenticalListeners {
+
+    public static void main(String[] args) throws Throwable {
+        TestListener testListener = new TestListener();
+        // Add the same listener twice
+        FlightRecorder.addListener(testListener);
+        FlightRecorder.addListener(testListener);
+
+        // Start recording
+        Recording recording = new Recording();
+        recording.start();
+        recording.stop();
+
+        // We expect 4 notifications in total: 1 RUNNING and 1 STOPPED
+        // notification for each listener registration
+        // NOT 2 notifications: we have added the same listener again
+        assertEquals(4, testListener.notificationCount, "Expected 2 notifications, got " + testListener.notificationCount);
+
+        System.out.println("Test Passed");
+        recording.close();
+    }
+
+    private static class TestListener implements FlightRecorderListener {
+        private int notificationCount;
+
+        @Override
+        public void recordingStateChanged(Recording recording) {
+            System.out.println("recordingStateChanged: " + " recording: " + recording + " state: " + recording.getState());
+            ++notificationCount;
+        }
+    }
+}