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.detailed; 27 28 import java.io.IOException; 29 import java.io.File; 30 import java.nio.charset.Charset; 31 import java.nio.file.Files; 32 import java.nio.file.Path; 33 import java.nio.file.Paths; 34 import java.util.Optional; 35 36 import jdk.jfr.consumer.RecordedEvent; 37 import jdk.jfr.consumer.RecordingFile; 38 import jdk.test.lib.Asserts; 39 import jdk.test.lib.jfr.EventNames; 40 41 /* 42 * @test 43 * @key jfr 44 * 45 * @requires (vm.gc == "ConcMarkSweep" | vm.gc == null) & !vm.graal.enabled 46 * @library /test/lib /test/jdk 47 * 48 * @run main jdk.jfr.event.gc.detailed.TestCMSConcurrentModeFailureEvent 49 */ 50 public class TestCMSConcurrentModeFailureEvent { 51 52 private final static String EVENT_NAME = EventNames.ConcurrentModeFailure; 53 private final static String EVENT_SETTINGS_FILE = System.getProperty("test.src", ".") + File.separator + "concurrentmodefailure-testsettings.jfc"; 54 private final static String JFR_FILE = "TestCMSConcurrentModeFailureEvent.jfr"; 55 private final static int BYTES_TO_ALLOCATE = 1024 * 512; 56 57 public static void main(String[] args) throws Exception { 58 String[] vmFlags = {"-Xmx128m", "-XX:MaxTenuringThreshold=0", "-Xlog:gc*=debug:testCMSGC.log", 59 "-XX:+UseConcMarkSweepGC", "-XX:+UnlockExperimentalVMOptions", "-XX:-UseFastUnorderedTimeStamps"}; 60 61 if (!ExecuteOOMApp.execute(EVENT_SETTINGS_FILE, JFR_FILE, vmFlags, BYTES_TO_ALLOCATE)) { 62 System.out.println("OOM happened in the other thread(not test thread). Skip test."); 63 // Skip test, process terminates due to the OOME error in the different thread 64 return; 65 } 66 67 Optional<RecordedEvent> event = RecordingFile.readAllEvents(Paths.get(JFR_FILE)).stream().findFirst(); 68 if (event.isPresent()) { 69 Asserts.assertEquals(EVENT_NAME, event.get().getEventType().getName(), "Wrong event type"); 70 } else { 71 // No event received. Check if test did trigger the event. 72 boolean isEventTriggered = fileContainsString("testCMSGC.log", "concurrent mode failure"); 73 System.out.println("isEventTriggered=" +isEventTriggered); 74 Asserts.assertFalse(isEventTriggered, "Event found in log, but not in JFR"); 75 } 76 } 77 78 private static boolean fileContainsString(String filename, String text) throws IOException { 79 Path p = Paths.get(filename); 80 for (String line : Files.readAllLines(p, Charset.defaultCharset())) { 81 if (line.contains(text)) { 82 return true; 83 } 84 } 85 return false; 86 } 87 }