1 /* 2 * Copyright (c) 2005, 2020, 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 static jdk.test.lib.Asserts.assertTrue; 25 import static jdk.test.lib.Asserts.fail; 26 27 import java.io.File; 28 import java.util.Arrays; 29 30 import jdk.test.lib.JDKToolLauncher; 31 import jdk.test.lib.Utils; 32 import jdk.test.lib.hprof.HprofParser; 33 import jdk.test.lib.process.OutputAnalyzer; 34 import jdk.test.lib.process.ProcessTools; 35 36 /* 37 * @test 38 * @summary Unit test for jmap utility 39 * @key intermittent 40 * @library /test/lib 41 * @build jdk.test.lib.hprof.* 42 * @build jdk.test.lib.hprof.model.* 43 * @build jdk.test.lib.hprof.parser.* 44 * @build jdk.test.lib.hprof.util.* 45 * @run main/timeout=240 BasicJMapTest 46 */ 47 public class BasicJMapTest { 48 49 private static ProcessBuilder processBuilder = new ProcessBuilder(); 50 51 public static void main(String[] args) throws Exception { 52 testHisto(); 53 testHistoLive(); 54 testHistoAll(); 55 testHistoToFile(); 56 testHistoLiveToFile(); 57 testHistoAllToFile(); 58 testFinalizerInfo(); 59 testClstats(); 60 testDump(); 61 testDumpLive(); 62 testDumpAll(); 63 } 64 65 private static void testHisto() throws Exception { 66 OutputAnalyzer output = jmap("-histo:"); 67 output.shouldHaveExitValue(0); 68 OutputAnalyzer output1 = jmap("-histo"); 69 output1.shouldHaveExitValue(0); 70 } 71 72 private static void testHistoLive() throws Exception { 73 OutputAnalyzer output = jmap("-histo:live"); 74 output.shouldHaveExitValue(0); 75 } 76 77 private static void testHistoAll() throws Exception { 78 OutputAnalyzer output = jmap("-histo:all"); 79 output.shouldHaveExitValue(0); 80 } 81 82 private static void testHistoToFile() throws Exception { 83 histoToFile(false); 84 } 85 86 private static void testHistoLiveToFile() throws Exception { 87 histoToFile(true); 88 } 89 90 private static void testHistoAllToFile() throws Exception { 91 boolean explicitAll = true; 92 histoToFile(false, explicitAll); 93 } 94 95 private static void histoToFile(boolean live) throws Exception { 96 boolean explicitAll = false; 97 histoToFile(live, explicitAll); 98 } 99 100 private static void histoToFile(boolean live, boolean explicitAll) throws Exception { 101 if (live == true && explicitAll == true) { 102 fail("Illegal argument setting for jmap -histo"); 103 } 104 File file = new File("jmap.histo.file" + System.currentTimeMillis() + ".histo"); 105 if (file.exists()) { 106 file.delete(); 107 } 108 OutputAnalyzer output; 109 if (live) { 110 output = jmap("-histo:live,file=" + file.getName()); 111 } else if (explicitAll == true) { 112 output = jmap("-histo:all,file=" + file.getName()); 113 } else { 114 output = jmap("-histo:file=" + file.getName()); 115 } 116 output.shouldHaveExitValue(0); 117 output.shouldContain("Heap inspection file created"); 118 file.delete(); 119 } 120 121 private static void testFinalizerInfo() throws Exception { 122 OutputAnalyzer output = jmap("-finalizerinfo"); 123 output.shouldHaveExitValue(0); 124 } 125 126 private static void testClstats() throws Exception { 127 OutputAnalyzer output = jmap("-clstats"); 128 output.shouldHaveExitValue(0); 129 } 130 131 private static void testDump() throws Exception { 132 dump(false); 133 } 134 135 private static void testDumpLive() throws Exception { 136 dump(true); 137 } 138 139 private static void testDumpAll() throws Exception { 140 boolean explicitAll = true; 141 dump(false, explicitAll); 142 } 143 144 private static void dump(boolean live) throws Exception { 145 boolean explicitAll = false; 146 dump(live, explicitAll); 147 } 148 149 private static void dump(boolean live, boolean explicitAll) throws Exception { 150 if (live == true && explicitAll == true) { 151 fail("Illegal argument setting for jmap -dump"); 152 } 153 File dump = new File("jmap.dump." + System.currentTimeMillis() + ".hprof"); 154 if (dump.exists()) { 155 dump.delete(); 156 } 157 OutputAnalyzer output; 158 if (live) { 159 output = jmap("-dump:live,format=b,file=" + dump.getName()); 160 } else if (explicitAll == true) { 161 output = jmap("-dump:all,format=b,file=" + dump.getName()); 162 } else { 163 output = jmap("-dump:format=b,file=" + dump.getName()); 164 } 165 output.shouldHaveExitValue(0); 166 output.shouldContain("Heap dump file created"); 167 verifyDumpFile(dump); 168 dump.delete(); 169 } 170 171 private static void verifyDumpFile(File dump) { 172 assertTrue(dump.exists() && dump.isFile(), "Could not create dump file " + dump.getAbsolutePath()); 173 try { 174 HprofParser.parse(dump); 175 } catch (Exception e) { 176 e.printStackTrace(); 177 fail("Could not parse dump file " + dump.getAbsolutePath()); 178 } 179 } 180 181 private static OutputAnalyzer jmap(String... toolArgs) throws Exception { 182 JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jmap"); 183 launcher.addVMArgs(Utils.getTestJavaOpts()); 184 if (toolArgs != null) { 185 for (String toolArg : toolArgs) { 186 launcher.addToolArg(toolArg); 187 } 188 } 189 launcher.addToolArg(Long.toString(ProcessTools.getProcessId())); 190 191 processBuilder.command(launcher.getCommand()); 192 System.out.println(Arrays.toString(processBuilder.command().toArray())); 193 OutputAnalyzer output = ProcessTools.executeProcess(processBuilder); 194 System.out.println(output.getOutput()); 195 196 return output; 197 } 198 199 }