test/jdk/jdk/jfr/api/consumer/streaming/TestJVMExit.java
author egahlin
Fri, 22 Nov 2019 17:20:43 +0100
changeset 59226 a0f39cc47387
child 59246 fcad92f425c5
permissions -rw-r--r--
8233700: EventStream not closed Reviewed-by: mgronlun, mseledtsov

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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.
 *
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package jdk.jfr.api.consumer.streaming;

import java.time.Instant;
import java.util.concurrent.atomic.AtomicInteger;

import jdk.jfr.consumer.EventStream;

/**
 * @test
 * @summary Test that a stream ends/closes when an application exists.
 * @key jfr
 * @requires vm.hasJFR
 * @library /test/lib /test/jdk
 * @modules jdk.jfr jdk.attach java.base/jdk.internal.misc
 *
 * @run main/othervm jdk.jfr.api.consumer.streaming.TestJVMExit
 */
public class TestJVMExit {

    public static void main(String... args) throws Exception {
        TestProcess process = new TestProcess("exit-application");
        AtomicInteger eventCounter = new AtomicInteger();
        try (EventStream es = EventStream.openRepository(process.getRepository())) {
            // Start from first event in repository
            es.setStartTime(Instant.EPOCH);
            es.onEvent(e -> {
                if (eventCounter.incrementAndGet() == TestProcess.NUMBER_OF_EVENTS) {
                    process.exit();
                }
            });
            es.start();
        }
    }
}