1 /*

     2  * Copyright (c) 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 import java.io.File;

    26 import java.nio.charset.Charset;

    27 import java.nio.file.Files;

    28 import java.nio.file.Path;

    29 import java.nio.file.Paths;

    30 import java.util.List;

    31 import java.util.ArrayList;

    32 

    33 /*

    34  * @test

    35  * @summary Try to archive lots of classes by searching for classes from the jrt:/ file system. With JDK 12

    36  *          this will produce an archive with over 30,000 classes.

    37  * @requires vm.cds

    38  * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds /test/hotspot/jtreg/runtime/cds/appcds/dynamicArchive/test-classes

    39  * @build LoadClasses

    40  * @build sun.hotspot.WhiteBox

    41  * @run driver ClassFileInstaller -jar loadclasses.jar LoadClasses

    42  * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox

    43  * @run driver/timeout=500 DynamicLotsOfClasses

    44  */

    45 

    46 public class DynamicLotsOfClasses extends DynamicArchiveTestBase {

    47 

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

    49         runTest(DynamicLotsOfClasses::testDefaultBase);

    50     }

    51 

    52     static void testDefaultBase() throws Exception {

    53         String topArchiveName = getNewArchiveName("top");

    54         doTest(topArchiveName);

    55     }

    56 

    57     private static void doTest(String topArchiveName) throws Exception {

    58         ArrayList<String> list = new ArrayList<>();

    59         TestCommon.findAllClasses(list);

    60 

    61         String classList = System.getProperty("user.dir") + File.separator +

    62                            "LotsOfClasses.list";

    63         List<String> lines = list;

    64         Path file = Paths.get(classList);

    65         Files.write(file, lines, Charset.forName("UTF-8"));

    66 

    67         String appJar = ClassFileInstaller.getJarPath("loadclasses.jar");

    68         String mainClass = "LoadClasses";

    69 

    70         String whiteBoxJar = ClassFileInstaller.getJarPath("whitebox.jar");

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

    72         dump(topArchiveName,

    73              "--add-modules",

    74              "ALL-SYSTEM",

    75              "-Xlog:hashtables",

    76              "-Xmx500m",

    77              "-Xlog:cds,cds+dynamic",

    78              bootClassPath,

    79              "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI",

    80              "-cp", appJar, mainClass, classList)

    81              .assertNormalExit(output -> {

    82                  output.shouldContain("Buffer-space to target-space delta")

    83                         .shouldContain("Written dynamic archive 0x");

    84              });

    85     }

    86 }