1 /* 2 * Copyright (c) 2017, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.util.ArrayList; 25 import java.util.List; 26 import java.io.File; 27 import java.nio.file.Files; 28 import java.io.IOException; 29 import java.io.BufferedInputStream; 30 import java.util.stream.Collectors; 31 import java.io.FileInputStream; 32 33 import sun.jvm.hotspot.HotSpotAgent; 34 import sun.jvm.hotspot.debugger.*; 35 36 import jdk.test.lib.apps.LingeredApp; 37 import jdk.test.lib.JDKToolLauncher; 38 import jdk.test.lib.JDKToolFinder; 39 import jdk.test.lib.Platform; 40 import jdk.test.lib.process.ProcessTools; 41 import jdk.test.lib.process.OutputAnalyzer; 42 import jdk.test.lib.Utils; 43 import jdk.test.lib.Asserts; 44 45 /** 46 * @test 47 * @library /test/lib 48 * @bug 8171084 49 * @requires vm.hasSAandCanAttach & (vm.bits == "64" & os.maxMemory > 8g) 50 * @requires vm.gc != "Shenandoah" 51 * @modules java.base/jdk.internal.misc 52 * jdk.hotspot.agent/sun.jvm.hotspot 53 * jdk.hotspot.agent/sun.jvm.hotspot.utilities 54 * jdk.hotspot.agent/sun.jvm.hotspot.oops 55 * jdk.hotspot.agent/sun.jvm.hotspot.debugger 56 * @run main/timeout=1800/othervm -Xmx8g TestHeapDumpForLargeArray 57 */ 58 59 public class TestHeapDumpForLargeArray { 60 61 private static LingeredAppWithLargeArray theApp = null; 62 63 private static void attachAndDump(String heapDumpFileName, 64 long lingeredAppPid) throws Exception { 65 66 JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb"); 67 launcher.addToolArg("jmap"); 68 launcher.addToolArg("--binaryheap"); 69 launcher.addToolArg("--dumpfile"); 70 launcher.addToolArg(heapDumpFileName); 71 launcher.addToolArg("--pid"); 72 launcher.addToolArg(Long.toString(lingeredAppPid)); 73 74 ProcessBuilder processBuilder = new ProcessBuilder(); 75 processBuilder.command(launcher.getCommand()); 76 System.out.println( 77 processBuilder.command().stream().collect(Collectors.joining(" "))); 78 79 OutputAnalyzer SAOutput = ProcessTools.executeProcess(processBuilder); 80 SAOutput.shouldHaveExitValue(0); 81 SAOutput.shouldNotContain("Heap segment size overflow"); 82 SAOutput.shouldContain("truncating to"); 83 SAOutput.shouldContain("heap written to"); 84 SAOutput.shouldContain(heapDumpFileName); 85 System.out.println(SAOutput.getOutput()); 86 87 } 88 89 public static void main (String... args) throws Exception { 90 91 String heapDumpFileName = "LargeArrayHeapDump.bin"; 92 93 File heapDumpFile = new File(heapDumpFileName); 94 if (heapDumpFile.exists()) { 95 heapDumpFile.delete(); 96 } 97 98 try { 99 List<String> vmArgs = new ArrayList<String>(); 100 vmArgs.add("-XX:+UsePerfData"); 101 vmArgs.add("-Xmx8g"); 102 vmArgs.addAll(Utils.getVmOptions()); 103 104 theApp = new LingeredAppWithLargeArray(); 105 LingeredApp.startApp(vmArgs, theApp); 106 attachAndDump(heapDumpFileName, theApp.getPid()); 107 } finally { 108 LingeredApp.stopApp(theApp); 109 heapDumpFile.delete(); 110 } 111 } 112 }