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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

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 *

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 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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import java.io.File;

import java.nio.charset.Charset;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.List;

import java.util.ArrayList;

/*

 * @test

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

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

 * @requires vm.cds

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

 * @build LoadClasses

 * @build sun.hotspot.WhiteBox

 * @run driver ClassFileInstaller -jar loadclasses.jar LoadClasses

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

 * @run driver/timeout=500 DynamicLotsOfClasses

 */

public class DynamicLotsOfClasses extends DynamicArchiveTestBase {

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

        runTest(DynamicLotsOfClasses::testDefaultBase);

    }

    static void testDefaultBase() throws Exception {

        String topArchiveName = getNewArchiveName("top");

        doTest(topArchiveName);

    }

    private static void doTest(String topArchiveName) throws Exception {

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

        TestCommon.findAllClasses(list);

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

                           "LotsOfClasses.list";

        List<String> lines = list;

        Path file = Paths.get(classList);

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

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

        String mainClass = "LoadClasses";

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

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

        dump(topArchiveName,

             "--add-modules",

             "ALL-SYSTEM",

             "-Xlog:hashtables",

             "-Xmx500m",

             "-Xlog:cds,cds+dynamic",

             bootClassPath,

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

             "-cp", appJar, mainClass, classList)

             .assertNormalExit(output -> {

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

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

             });

    }

}