1 /*

     2  * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package jdk.jfr.event.gc.collection;

    27 

    28 import java.time.Duration;

    29 import java.util.List;

    30 

    31 import jdk.jfr.Recording;

    32 import jdk.jfr.consumer.RecordedEvent;

    33 import jdk.test.lib.jfr.Events;

    34 import jdk.test.lib.jfr.GCHelper;

    35 

    36 /*

    37  * @test

    38  * @key jfr

    39   * @requires vm.gc == "Parallel" | vm.gc == null

    40  * @library /test/lib /test/jdk

    41  * @run main/othervm -XX:+UseParallelGC -XX:+UseParallelOldGC jdk.jfr.event.gc.collection.TestGCWithFasttime

    42  */

    43 public class TestGCWithFasttime {

    44     private static final String EVENT_NAME = GCHelper.event_garbage_collection;

    45 

    46     // TODO: Check if all GC tests can be run with fast time. If so, this test is probably not needed.

    47     public static void main(String[] args) throws Exception {

    48         Recording recording = new Recording();

    49         recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));

    50         recording.start();

    51         System.gc();

    52         System.gc();

    53         recording.stop();

    54 

    55         List<RecordedEvent> events = Events.fromRecording(recording);

    56         Events.hasEvents(events);

    57         for (RecordedEvent event : events) {

    58             if (!EVENT_NAME.equals(event.getEventType().getName())) {

    59                 continue;

    60             }

    61             Events.assertField(event, "name").notEmpty();

    62             Events.assertField(event, "cause").notEmpty();

    63         }

    64     }

    65 }