/*
* 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 .
*
* 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 .
*
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*/
package jdk.jfr.jmx;
import java.util.List;
import jdk.jfr.RecordingState;
import jdk.management.jfr.FlightRecorderMXBean;
import jdk.management.jfr.RecordingInfo;
/**
* @ test
* @ key jfr
* @ requires vm . hasJFR
* @ library / test / lib / test / jdk
* @ run main / othervm jdk . jfr . jmx . TestMultipleRecordings
*/
public class TestMultipleRecordings {
public static void main(String[] args) throws Throwable {
FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
System.out.println("bean.class=" + bean.getClass().getName());
// Start recA
long recIdA = createRecording(bean);
startRecording(recIdA, bean);
// Start recB
long recIdB = createRecording(bean);
startRecording(recIdB, bean);
// Stop and destroy recA
stopRecording(recIdA, bean);
destroyRecording(recIdA, bean);
// Start, stop and destroy recC
long recIdC = createRecording(bean);
startRecording(recIdC, bean);
stopRecording(recIdC, bean);
destroyRecording(recIdC, bean);
// Stop and destroy recB
stopRecording(recIdB, bean);
destroyRecording(recIdB, bean);
}
private static long createRecording(FlightRecorderMXBean bean) throws Exception {
List<RecordingInfo> preCreateRecordings = bean.getRecordings();
long recId = bean.newRecording();
JmxHelper.verifyNotExists(recId, preCreateRecordings);
JmxHelper.verifyState(recId, RecordingState.NEW , bean);
return recId;
}
private static void startRecording(long recId, FlightRecorderMXBean bean) throws Exception {
JmxHelper.verifyState(recId, RecordingState.NEW , bean);
bean.startRecording(recId);
JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
}
private static void stopRecording(long recId, FlightRecorderMXBean bean) throws Exception {
JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
bean.stopRecording(recId);
JmxHelper.verifyState(recId, RecordingState.STOPPED, bean);
}
private static void destroyRecording(long recId, FlightRecorderMXBean bean) throws Exception {
JmxHelper.verifyState(recId, RecordingState.STOPPED, bean);
bean.closeRecording(recId);
JmxHelper.verifyNotExists(recId, bean.getRecordings());
}
}
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¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-10)
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