1 /*

     2  * Copyright (c) 2017, 2018, 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 /*

    25  * @test

    26  * @bug 8130072

    27  * @summary Check that Shared Dictionary is printed out with jcmd

    28  * @requires vm.cds

    29  * @library /test/lib

    30  * @modules java.base/jdk.internal.misc

    31  * @run driver DumpSharedDictionary

    32  */

    33 

    34 import jdk.test.lib.cds.CDSTestUtils;

    35 import jdk.test.lib.process.ProcessTools;

    36 import jdk.test.lib.process.OutputAnalyzer;

    37 import jdk.test.lib.JDKToolFinder;

    38 

    39 public class DumpSharedDictionary {

    40 

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

    42         if (args.length == 0) {

    43             // Start this process

    44             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

    45                 "-XX:SharedArchiveFile=./DumpSharedDictionary.jsa",

    46                 "-Xshare:dump");

    47 

    48             OutputAnalyzer out = CDSTestUtils.executeAndLog(pb, "dump");

    49             out.shouldHaveExitValue(0);

    50 

    51             String testjdkPath = System.getProperty("test.jdk");

    52 

    53             pb = ProcessTools.createJavaProcessBuilder(

    54                     "-XX:SharedArchiveFile=./DumpSharedDictionary.jsa",

    55                     "-Dtest.jdk=" + testjdkPath,

    56                     "-Xshare:on", "DumpSharedDictionary", "test");

    57 

    58             out = CDSTestUtils.executeAndLog(pb, "exec");

    59             if (!CDSTestUtils.isUnableToMap(out)) {

    60                 out.shouldHaveExitValue(0);

    61             }

    62         } else {

    63             // Grab my own PID

    64             String pid = Long.toString(ProcessTools.getProcessId());

    65 

    66             ProcessBuilder pb = new ProcessBuilder();

    67             pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary"});

    68             OutputAnalyzer output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary");

    69             try {

    70                 output.shouldContain("Shared Dictionary statistics:");

    71                 output.shouldContain("Number of buckets");

    72                 output.shouldContain("Number of entries");

    73                 output.shouldContain("Maximum bucket size");

    74             } catch (RuntimeException e) {

    75                 output.shouldContain("Unknown diagnostic command");

    76             }

    77 

    78             pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.systemdictionary", "-verbose"});

    79             output = CDSTestUtils.executeAndLog(pb, "jcmd-systemdictionary-verbose");

    80             try {

    81                 output.shouldContain("Shared Dictionary");

    82                 output.shouldContain("Dictionary for loader data: 0x");

    83                 output.shouldContain("^java.lang.String");

    84             } catch (RuntimeException e) {

    85                 output.shouldContain("Unknown diagnostic command");

    86             }

    87         }

    88     }

    89 }