1 /* 2 * Copyright (c) 2016, 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 package jdk.jfr.event.gc.detailed; 26 27 import java.nio.file.Paths; 28 import java.util.List; 29 30 import jdk.jfr.EventType; 31 import jdk.jfr.FlightRecorder; 32 import jdk.jfr.Recording; 33 import jdk.jfr.consumer.RecordedEvent; 34 import jdk.test.lib.Asserts; 35 import jdk.test.lib.jfr.EventNames; 36 import jdk.test.lib.jfr.Events; 37 import jdk.test.lib.jfr.GCHelper; 38 39 /** 40 * @test 41 * @bug 8221507 42 * @requires vm.hasJFR 43 * @requires vm.gc == "Shenandoah" | vm.gc == null 44 * @key jfr 45 * @library /test/lib /test/jdk 46 * @run main/othervm -Xmx32m -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGarbageThreshold=1 jdk.jfr.event.gc.detailed.TestShenandoahHeapRegionStateChangeEvent 47 */ 48 49 50 public class TestShenandoahHeapRegionInformationEvent { 51 private final static String EVENT_NAME = EventNames.ShenandoahHeapRegionInformation; 52 public static void main(String[] args) throws Exception { 53 Recording recording = null; 54 try { 55 recording = new Recording(); 56 // activate the event we are interested in and start recording 57 for (EventType t : FlightRecorder.getFlightRecorder().getEventTypes()) { 58 System.out.println(t.getName()); 59 } 60 recording.enable(EVENT_NAME); 61 recording.start(); 62 recording.stop(); 63 64 // Verify recording 65 List<RecordedEvent> events = Events.fromRecording(recording); 66 Events.hasEvents(events); 67 68 for (RecordedEvent event : events) { 69 Events.assertField(event, "index").notEqual(-1); 70 Asserts.assertTrue(GCHelper.isValidShenandoahHeapRegionState(Events.assertField(event, "type").getValue())); 71 Events.assertField(event, "used").atMost(1L*1024*1024); 72 } 73 74 } catch (Throwable t) { 75 if (recording != null) { 76 recording.dump(Paths.get("TestShenandoahHeapRegionInformationEvent.jfr")); 77 } 78 throw t; 79 } finally { 80 if (recording != null) { 81 recording.close(); 82 } 83 } 84 } 85 }