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/**

 * @test

 * @summary Check to make sure that shared strings in the bootstrap CDS archive

 *          are actually shared

 * @library /test/lib

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

 *          java.management

 * @build SharedStringsWb sun.hotspot.WhiteBox

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

 * @run main SharedStrings

 */

import jdk.test.lib.cds.CDSTestUtils;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

public class SharedStrings {

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

        // Note: This is a basic sanity test for Shared Strings feature.

        // This also serves as a reference on how to use this feature,

        // hence the command lines are spelled out instead of using the

        // test utils methods.

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

            "-XX:+UnlockDiagnosticVMOptions",

            "-XX:SharedArchiveFile=./SharedStrings.jsa",

            "-Xlog:cds,cds+hashtables",

            // Needed for bootclasspath match, for CDS to work with WhiteBox API

            "-Xbootclasspath/a:" + ClassFileInstaller.getJarPath("whitebox.jar"),

            "-Xshare:dump");

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

        CDSTestUtils.checkDump(out, "Shared string table stats");

        pb = ProcessTools.createJavaProcessBuilder(

                "-XX:+UnlockDiagnosticVMOptions",

                "-XX:SharedArchiveFile=./SharedStrings.jsa",

                // needed for access to white box test API

                "-Xbootclasspath/a:" + ClassFileInstaller.getJarPath("whitebox.jar"),

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

                "-Xshare:on", "-showversion", "SharedStringsWb");

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

        CDSTestUtils.checkExec(out);

    }

}