1 /*

     2  * Copyright (c) 2005, 2016, 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.testlibrary.Asserts.assertTrue;

    25 import static jdk.testlibrary.Asserts.fail;

    26 

    27 import java.io.File;

    28 import java.util.Arrays;

    29 

    30 import jdk.test.lib.hprof.HprofParser;

    31 import jdk.testlibrary.JDKToolLauncher;

    32 import jdk.testlibrary.OutputAnalyzer;

    33 import jdk.testlibrary.ProcessTools;

    34 

    35 /*

    36  * @test

    37  * @summary Unit test for jmap utility

    38  * @key intermittent

    39  * @library /lib/testlibrary

    40  * @library /test/lib

    41  * @build jdk.testlibrary.*

    42  * @build jdk.test.lib.hprof.*

    43  * @build jdk.test.lib.hprof.model.*

    44  * @build jdk.test.lib.hprof.parser.*

    45  * @build jdk.test.lib.hprof.util.*

    46  * @run main/timeout=240 BasicJMapTest

    47  */

    48 public class BasicJMapTest {

    49 

    50     private static ProcessBuilder processBuilder = new ProcessBuilder();

    51 

    52     public static void main(String[] args) throws Exception {

    53         testHisto();

    54         testHistoLive();

    55         testFinalizerInfo();

    56         testClstats();

    57         testDump();

    58         testDumpLive();

    59     }

    60 

    61     private static void testHisto() throws Exception {

    62         OutputAnalyzer output = jmap("-histo");

    63         output.shouldHaveExitValue(0);

    64     }

    65 

    66     private static void testHistoLive() throws Exception {

    67         OutputAnalyzer output = jmap("-histo:live");

    68         output.shouldHaveExitValue(0);

    69     }

    70 

    71     private static void testFinalizerInfo() throws Exception {

    72         OutputAnalyzer output = jmap("-finalizerinfo");

    73         output.shouldHaveExitValue(0);

    74     }

    75 

    76     private static void testClstats() throws Exception {

    77         OutputAnalyzer output = jmap("-clstats");

    78         output.shouldHaveExitValue(0);

    79     }

    80 

    81     private static void testDump() throws Exception {

    82         dump(false);

    83     }

    84 

    85     private static void testDumpLive() throws Exception {

    86         dump(true);

    87     }

    88 

    89     private static void dump(boolean live) throws Exception {

    90         File dump = new File("jmap.dump." + System.currentTimeMillis() + ".hprof");

    91         if (dump.exists()) {

    92             dump.delete();

    93         }

    94         OutputAnalyzer output;

    95         if (live) {

    96             output = jmap("-dump:live,format=b,file=" + dump.getName());

    97         } else {

    98             output = jmap("-dump:format=b,file=" + dump.getName());

    99         }

   100         output.shouldHaveExitValue(0);

   101         output.shouldContain("Heap dump file created");

   102         verifyDumpFile(dump);

   103         dump.delete();

   104     }

   105 

   106     private static void verifyDumpFile(File dump) {

   107         assertTrue(dump.exists() && dump.isFile(), "Could not create dump file " + dump.getAbsolutePath());

   108         try {

   109             HprofParser.parse(dump);

   110         } catch (Exception e) {

   111             e.printStackTrace();

   112             fail("Could not parse dump file " + dump.getAbsolutePath());

   113         }

   114     }

   115 

   116     private static OutputAnalyzer jmap(String... toolArgs) throws Exception {

   117         JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jmap");

   118         if (toolArgs != null) {

   119             for (String toolArg : toolArgs) {

   120                 launcher.addToolArg(toolArg);

   121             }

   122         }

   123         launcher.addToolArg(Long.toString(ProcessTools.getProcessId()));

   124 

   125         processBuilder.command(launcher.getCommand());

   126         System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", ""));

   127         OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);

   128         System.out.println(output.getOutput());

   129 

   130         return output;

   131     }

   132 

   133 }