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/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.api.recording.state;
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import static jdk.test.lib.Asserts.assertEquals;
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import jdk.jfr.FlightRecorder;
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import jdk.jfr.FlightRecorderListener;
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import jdk.jfr.Recording;
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/*
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* @test
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* @summary Test Recording state with concurrent recordings
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* @key jfr
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* @library /test/lib
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* @run main/othervm jdk.jfr.api.recording.state.TestStateIdenticalListeners
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*/
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public class TestStateIdenticalListeners {
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public static void main(String[] args) throws Throwable {
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TestListener testListener = new TestListener();
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// Add the same listener twice
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FlightRecorder.addListener(testListener);
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FlightRecorder.addListener(testListener);
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// Start recording
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Recording recording = new Recording();
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recording.start();
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recording.stop();
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// We expect 4 notifications in total: 1 RUNNING and 1 STOPPED
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// notification for each listener registration
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// NOT 2 notifications: we have added the same listener again
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assertEquals(4, testListener.notificationCount, "Expected 2 notifications, got " + testListener.notificationCount);
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System.out.println("Test Passed");
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recording.close();
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}
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private static class TestListener implements FlightRecorderListener {
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private int notificationCount;
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@Override
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public void recordingStateChanged(Recording recording) {
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System.out.println("recordingStateChanged: " + " recording: " + recording + " state: " + recording.getState());
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++notificationCount;
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}
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}
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}
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