1 /* 2 * Copyright (c) 2005, 2015, 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.io.File; 25 import java.util.Arrays; 26 27 import static jdk.testlibrary.Asserts.*; 28 import jdk.test.lib.hprof.HprofParser; 29 import jdk.testlibrary.JDKToolLauncher; 30 import jdk.testlibrary.OutputAnalyzer; 31 import jdk.testlibrary.ProcessTools; 32 33 /* 34 * @test 35 * @bug 6321286 36 * @summary Unit test for jmap utility 37 * @library /lib/testlibrary 38 * @library /../../test/lib/share/classes/ 39 * @build jdk.testlibrary.* 40 * @run main BasicJMapTest 41 */ 42 public class BasicJMapTest { 43 44 private static ProcessBuilder processBuilder = new ProcessBuilder(); 45 46 public static void main(String[] args) throws Exception { 47 testHisto(); 48 testHistoLive(); 49 testDump(); 50 testDumpLive(); 51 } 52 53 private static void testHisto() throws Exception { 54 OutputAnalyzer output = jmap("-histo"); 55 output.shouldHaveExitValue(0); 56 } 57 58 private static void testHistoLive() throws Exception { 59 OutputAnalyzer output = jmap("-histo:live"); 60 output.shouldHaveExitValue(0); 61 } 62 63 private static void testDump() throws Exception { 64 File dump = new File("java_pid$" + ProcessTools.getProcessId() + ".hprof"); 65 OutputAnalyzer output = jmap("-dump:format=b,file=" + dump.getName()); 66 output.shouldHaveExitValue(0); 67 output.shouldContain("Heap dump file created"); 68 verifyDumpFile(dump); 69 } 70 71 private static void testDumpLive() throws Exception { 72 File dump = new File("java_pid$" + ProcessTools.getProcessId() + ".hprof"); 73 OutputAnalyzer output = jmap("-dump:live,format=b,file=" + dump.getName()); 74 output.shouldHaveExitValue(0); 75 output.shouldContain("Heap dump file created"); 76 verifyDumpFile(dump); 77 } 78 79 private static void verifyDumpFile(File dump) { 80 assertTrue(dump.exists() && dump.isFile(), "Could not create dump file"); 81 try { 82 HprofParser.parse(dump); 83 } catch (Exception e) { 84 e.printStackTrace(); 85 assertFalse(true, "Could not parse dump file"); 86 } 87 dump.delete(); 88 } 89 90 private static OutputAnalyzer jmap(String... toolArgs) throws Exception { 91 JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jmap"); 92 launcher.addVMArg("-XX:+UsePerfData"); 93 if (toolArgs != null) { 94 for (String toolArg : toolArgs) { 95 launcher.addToolArg(toolArg); 96 } 97 } 98 launcher.addToolArg(Integer.toString(ProcessTools.getProcessId())); 99 100 processBuilder.command(launcher.getCommand()); 101 System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", "")); 102 OutputAnalyzer output = ProcessTools.executeProcess(processBuilder); 103 System.out.println(output.getOutput()); 104 105 return output; 106 } 107 108 }