1 /*

     2  * Copyright (c) 2017, 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 /*

    26  * @test

    27  * @summary Similar to GCDuringDumping.java, this test adds the -XX:SharedArchiveConfigFile

    28  *          option for testing the interaction with GC and shared strings.

    29  * @library /test/lib /test/hotspot/jtreg/runtime/appcds /test/hotspot/jtreg/runtime/appcds/test-classes

    30  * @requires (sun.arch.data.model != "32") & (os.family != "windows")

    31  * @requires (vm.opt.UseCompressedOops == null) | (vm.opt.UseCompressedOops == true)

    32  * @requires vm.flavor != "minimal"

    33  * @requires vm.gc.G1

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

    35  *          jdk.jartool/sun.tools.jar

    36  *          java.management

    37  * @build sun.hotspot.WhiteBox GCDuringDumpTransformer GCSharedStringsDuringDumpWb

    38  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    39  * @run main/othervm/timeout=480 GCSharedStringsDuringDump

    40  */

    41 

    42 import java.io.File;

    43 import java.io.FileOutputStream;

    44 import java.io.OutputStreamWriter;

    45 import java.io.PrintWriter;

    46 import jdk.test.lib.cds.CDSOptions;

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

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

    49 import sun.hotspot.WhiteBox;

    50 

    51 public class GCSharedStringsDuringDump {

    52     public static String appClasses[] = {

    53         "GCSharedStringsDuringDumpWb",

    54     };

    55     public static String agentClasses[] = {

    56         "GCDuringDumpTransformer",

    57     };

    58 

    59     public static void main(String[] args) throws Throwable {

    60         String agentJar =

    61             ClassFileInstaller.writeJar("GCDuringDumpTransformer.jar",

    62                                         ClassFileInstaller.Manifest.fromSourceFile("GCDuringDumpTransformer.mf"),

    63                                         agentClasses);

    64 

    65         String appJar =

    66             ClassFileInstaller.writeJar("GCSharedStringsDuringDumpApp.jar", appClasses);

    67 

    68         String gcLog = "-Xlog:gc*=info,gc+region=trace,gc+alloc+region=debug";

    69 

    70         String sharedArchiveCfgFile =

    71             System.getProperty("user.dir") + File.separator + "GCSharedStringDuringDump_gen.txt";

    72         try (FileOutputStream fos = new FileOutputStream(sharedArchiveCfgFile)) {

    73             PrintWriter out = new PrintWriter(new OutputStreamWriter(fos));

    74             out.println("VERSION: 1.0");

    75             out.println("@SECTION: String");

    76             out.println("31: shared_test_string_unique_14325");

    77             for (int i=0; i<100000; i++) {

    78                 String s = "generated_string " + i;

    79                 out.println(s.length() + ": " + s);

    80             }

    81             out.close();

    82         }

    83 

    84         JarBuilder.build(true, "WhiteBox", "sun/hotspot/WhiteBox");

    85         String whiteBoxJar = TestCommon.getTestJar("WhiteBox.jar");

    86         String bootClassPath = "-Xbootclasspath/a:" + whiteBoxJar;

    87 

    88         for (int i=0; i<2; i++) {

    89             // i = 0 -- run without agent = no extra GCs

    90             // i = 1 -- run with agent = cause extra GCs

    91 

    92             String extraArg = (i == 0) ? "-showversion" : "-javaagent:" + agentJar;

    93 

    94             OutputAnalyzer output = TestCommon.dump(

    95                                 appJar, TestCommon.list("GCSharedStringsDuringDumpWb"),

    96                                 bootClassPath, extraArg, "-Xmx32m", gcLog,

    97                                 "-XX:+UseCompressedOops", "-XX:+UseG1GC",

    98                                 "-XX:SharedReadOnlySize=30m",

    99                                 "-XX:SharedArchiveConfigFile=" + sharedArchiveCfgFile);

   100 

   101             if (output.getStdout().contains("Too many string space regions") ||

   102                 output.getStderr().contains("Unable to write archive heap memory regions") ||

   103                 output.getStdout().contains("Try increasing NewSize") ||

   104                 output.getExitValue() != 0) {

   105                 // Try again with larger heap and NewSize, this should increase the

   106                 // G1 heap region size to 2M

   107                 TestCommon.testDump(

   108                     appJar, TestCommon.list("GCSharedStringsDuringDumpWb"),

   109                     bootClassPath, extraArg, "-Xmx8g", "-XX:NewSize=8m", gcLog,

   110                     "-XX:+UseCompressedOops", "-XX:+UseG1GC",

   111                     "-XX:SharedReadOnlySize=30m",

   112                     "-XX:SharedArchiveConfigFile=" + sharedArchiveCfgFile);

   113             }

   114 

   115             output = TestCommon.execCommon(

   116                 "-cp", appJar,

   117                 bootClassPath,

   118                 "-Xmx32m",

   119                 "-XX:+PrintSharedSpaces",

   120                 "-XX:+UseCompressedOops",

   121                 "-XX:+UseG1GC",

   122                 "-XX:+UnlockDiagnosticVMOptions",

   123                 "-XX:+WhiteBoxAPI",

   124                 "-XX:SharedReadOnlySize=30m",

   125                 gcLog,

   126                 "GCSharedStringsDuringDumpWb");

   127             TestCommon.checkExec(output);

   128         }

   129     }

   130 }

   131