1 /*

     2  * Copyright (c) 2017, 2019, 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/cds/appcds /test/hotspot/jtreg/runtime/cds/appcds/test-classes

    30  * @requires vm.cds.archived.java.heap

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

    32  *          jdk.jartool/sun.tools.jar

    33  *          java.management

    34  * @build sun.hotspot.WhiteBox GCDuringDumpTransformer GCSharedStringsDuringDumpWb

    35  * @run driver ClassFileInstaller sun.hotspot.WhiteBox

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

    37  */

    38 

    39 import java.io.File;

    40 import java.io.FileOutputStream;

    41 import java.io.OutputStreamWriter;

    42 import java.io.PrintWriter;

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

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

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

    46 import sun.hotspot.WhiteBox;

    47 

    48 public class GCSharedStringsDuringDump {

    49     public static String appClasses[] = {

    50         "GCSharedStringsDuringDumpWb",

    51     };

    52     public static String agentClasses[] = {

    53         "GCDuringDumpTransformer",

    54     };

    55 

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

    57         String agentJar =

    58             ClassFileInstaller.writeJar("GCDuringDumpTransformer.jar",

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

    60                                         agentClasses);

    61 

    62         String appJar =

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

    64 

    65         String gcLog = Boolean.getBoolean("test.cds.verbose.gc") ?

    66             "-Xlog:gc*=info,gc+region=trace,gc+alloc+region=debug" : "-showversion";

    67 

    68         String sharedArchiveCfgFile =

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

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

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

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

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

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

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

    76                 String s = "generated_string " + i;

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

    78             }

    79             out.close();

    80         }

    81 

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

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

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

    85 

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

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

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

    89 

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

    91             String extraOption = (i == 0) ? "-showversion" : "-XX:+AllowArchivingWithJavaAgent";

    92             OutputAnalyzer output = TestCommon.dump(

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

    94                                 bootClassPath, extraArg, "-Xmx32m", gcLog,

    95                                 "-XX:SharedArchiveConfigFile=" + sharedArchiveCfgFile,

    96                                 "-XX:+UnlockDiagnosticVMOptions", extraOption);

    97 

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

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

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

   101                 !output.getStdout().contains("oa0 space:") ||

   102                 output.getExitValue() != 0) {

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

   104                 // G1 heap region size to 2M

   105                 TestCommon.testDump(

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

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

   108                     "-XX:SharedArchiveConfigFile=" + sharedArchiveCfgFile,

   109                     "-XX:+UnlockDiagnosticVMOptions", extraOption);

   110             }

   111 

   112             TestCommon.run(

   113                 "-cp", appJar,

   114                 bootClassPath,

   115                 extraArg,

   116                 "-Xlog:cds=info,class+path=info",

   117                 "-Xmx32m",

   118                 "-XX:+PrintSharedSpaces",

   119                 "-XX:+UnlockDiagnosticVMOptions",

   120                 extraOption,

   121                 "-XX:+WhiteBoxAPI",

   122                 "-XX:SharedReadOnlySize=30m",

   123                 gcLog,

   124                 "GCSharedStringsDuringDumpWb")

   125               .assertNormalExit();

   126         }

   127     }

   128 }

   129