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 jdk.testlibrary.Asserts;
  28 import jdk.testlibrary.JDKToolLauncher;
  29 import jdk.testlibrary.OutputAnalyzer;
  30 import jdk.testlibrary.ProcessTools;
  31 
  32 /* @test
  33  * @bug 5102009
  34  * @summary Sanity test of jhat functionality
  35  * @library /lib/testlibrary
  36  * @modules java.management
  37  * @build jdk.testlibarary.*
  38  * @compile -g HelloWorld.java
  39  * @run main HatHeapDump1Test
  40  */
  41 public class HatHeapDump1Test {
  42 
  43     private static final String TEST_CLASSES = System.getProperty("test.classes", ".");
  44 
  45     public static void main(String args[]) throws Exception {
  46         String className = "HelloWorld";
  47         File dumpFile = new File(className + ".hdump");
  48 
  49         // Generate a heap dump
  50         ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder("-cp",
  51                 TEST_CLASSES,
  52                 "-Xcheck:jni",
  53                 "-Xverify:all",
  54                 "-agentlib:hprof=heap=dump,format=b,file=" + dumpFile.getAbsolutePath(),
  55                 className);
  56         OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
  57         System.out.println(output.getOutput());
  58         output.shouldHaveExitValue(0);
  59         output.shouldContain("Dumping Java heap ... done");
  60         Asserts.assertTrue(dumpFile.exists() && dumpFile.isFile(), "Invalid dump file " + dumpFile.getAbsolutePath());
  61 
  62         // Run jhat to analyze the heap dump
  63         output = jhat("-debug", "2", dumpFile.getAbsolutePath());
  64         output.shouldHaveExitValue(0);
  65         output.shouldContain("Snapshot resolved");
  66         output.shouldContain("-debug 2 was used");
  67         output.shouldNotContain("ERROR");
  68 
  69         dumpFile.delete();
  70     }
  71 
  72     private static OutputAnalyzer jhat(String... toolArgs) throws Exception {
  73         JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhat");
  74         if (toolArgs != null) {
  75             for (String toolArg : toolArgs) {
  76                 launcher.addToolArg(toolArg);
  77             }
  78         }
  79 
  80         ProcessBuilder processBuilder = new ProcessBuilder();
  81         processBuilder.command(launcher.getCommand());
  82         System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", ""));
  83         OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
  84         System.out.println(output.getOutput());
  85 
  86         return output;
  87     }
  88 
  89 }