--- /dev/null 2017-11-09 09:38:01.297999907 +0100 +++ new/test/jdk/jdk/jfr/jmx/TestCopyToRunning.java 2018-04-09 18:45:06.145248241 +0200 @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2013, 2018, 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.jmx; + +import java.nio.file.Path; +import java.nio.file.Paths; +import java.util.List; + +import jdk.jfr.FlightRecorder; +import jdk.jfr.Recording; +import jdk.jfr.RecordingState; +import jdk.jfr.consumer.RecordedEvent; +import jdk.jfr.consumer.RecordingFile; +import jdk.management.jfr.FlightRecorderMXBean; +import jdk.test.lib.Asserts; +import jdk.test.lib.jfr.SimpleEventHelper; + +/* + * @test + * @key jfr + * @summary Copy a recording to file while it is running. + * @library /test/lib /test/jdk + * @run main/othervm jdk.jfr.jmx.TestCopyToRunning + */ +public class TestCopyToRunning { + public static void main(String[] args) throws Exception { + FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean(); + + long recId = bean.newRecording(); + bean.startRecording(recId); + SimpleEventHelper.createEvent(1); + + Path path = Paths.get(".", "my.jfr"); + bean.copyTo(recId, path.toString()); + + List events = RecordingFile.readAllEvents(path); + Asserts.assertTrue(events.iterator().hasNext(), "No events found"); + for (RecordedEvent event : events) { + System.out.println("Event:" + event); + } + + Recording recording = getRecording(recId); + Asserts.assertEquals(recording.getState(), RecordingState.RUNNING, "Recording not in state running"); + bean.stopRecording(recId); + Asserts.assertEquals(recording.getState(), RecordingState.STOPPED, "Recording not in state stopped"); + bean.closeRecording(recId); + Asserts.assertEquals(recording.getState(), RecordingState.CLOSED, "Recording not in state closed"); + } + + private static Recording getRecording(long recId) { + for (Recording r : FlightRecorder.getFlightRecorder().getRecordings()) { + if (r.getId() == recId) { + return r; + } + } + Asserts.fail("Could not find recording with id " + recId); + return null; + } +}