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 }