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 26 package jdk.jfr.event.gc.detailed; 27 28 import jdk.test.lib.jfr.AppExecutorHelper; 29 import jdk.test.lib.process.OutputAnalyzer; 30 31 import java.util.ArrayList; 32 import java.util.Arrays; 33 import java.util.List; 34 35 public class ExecuteOOMApp { 36 /** 37 * Executes OOM application with JFR recording and returns true if OOM error happened in the 38 * test thread. Adds -XX:-UseGCOverheadLimit option to avoid "java.lang.OutOfMemoryError: GC overhead limit exceeded". 39 * 40 * @param settings JFR settings file 41 * @param jfrFilename JFR resulting recording filename 42 * @param additionalVmFlags additional VM flags passed to the java 43 * @param bytesToAllocate number of bytes to allocate in new object every cycle in OOM application 44 * @return true - OOM application is finished as expected,i.e. OOM happened in the test thead 45 * false - OOM application is finished with OOM error which happened in the non test thread 46 */ 47 public static boolean execute(String settings, String jfrFilename, String[] additionalVmFlags, int bytesToAllocate) throws Exception { 48 List<String> additionalVmFlagsList = new ArrayList<>(Arrays.asList(additionalVmFlags)); 49 additionalVmFlagsList.add("-XX:-UseGCOverheadLimit"); 50 51 OutputAnalyzer out = AppExecutorHelper.executeAndRecord(settings, jfrFilename, additionalVmFlagsList.toArray(new String[0]), 52 OOMApp.class.getName(), String.valueOf(bytesToAllocate)); 53 54 if ((out.getExitValue() == 1 && out.getOutput().contains("Exception: java.lang.OutOfMemoryError"))) { 55 return false; 56 } 57 58 out.shouldHaveExitValue(0); 59 System.out.println(out.getOutput()); 60 61 return true; 62 } 63 }