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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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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 * 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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/*
 * @test storing a dynamically generated interned string in the AOT cache
 * @bug 8356125
 * @requires vm.cds.write.archived.java.heap
 * @requires vm.cds.supports.aot.class.linking
 * @requires vm.debug
 * @library /test/jdk/lib/testlibrary /test/lib /test/hotspot/jtreg/runtime/cds/appcds
 * @build GeneratedInternedString
 * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar GeneratedInternedStringApp
 * @run driver GeneratedInternedString
 */

import jdk.test.lib.cds.SimpleCDSAppTester;

public class GeneratedInternedString {
    public static void main(String... args) throws Exception {
        SimpleCDSAppTester.of("GeneratedInternedString")
            .addVmArgs("-XX:AOTInitTestClass=GeneratedInternedStringApp")
            .classpath("app.jar")
            .appCommandLine("GeneratedInternedStringApp")
            .runAOTWorkflow();
    }
}

// This class is cached in the AOT-initialized state. At the beginning of the production
// run, all of the static fields in GeneratedInternedStringApp will retain their values
// at the end of the assembly phase. GeneratedInternedStringApp::<clinit> is NOT executed in the
// production run.
class GeneratedInternedStringApp {
    static volatile int n = 0;
    static final String generatedInternedString = generate();

    public static void main(String args[]) {
        n = args.length;
        String b = generate();
        if (generatedInternedString != b) {
            throw new RuntimeException("generatedInternedString: " + System.identityHashCode(generatedInternedString)
                                       + " vs b:" + System.identityHashCode(b));
        }
    }

    static String generate() {
        System.out.println("generate() is called");
        return ("GeneratedInternedStringApp_String" + n).intern();
    }
}