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73 lines
2.9 KiB
Java
73 lines
2.9 KiB
Java
/*
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* Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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/*
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* @test storing a dynamically generated interned string in the AOT cache
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* @bug 8356125
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* @requires vm.cds.write.archived.java.heap
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* @requires vm.cds.supports.aot.class.linking
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* @requires vm.debug
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* @comment work around JDK-8345635
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* @requires !vm.jvmci.enabled
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* @library /test/jdk/lib/testlibrary /test/lib /test/hotspot/jtreg/runtime/cds/appcds
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* @build GeneratedInternedString
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* @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar GeneratedInternedStringApp
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* @run driver GeneratedInternedString
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*/
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import jdk.test.lib.cds.SimpleCDSAppTester;
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public class GeneratedInternedString {
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public static void main(String... args) throws Exception {
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SimpleCDSAppTester.of("GeneratedInternedString")
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.addVmArgs("-XX:AOTInitTestClass=GeneratedInternedStringApp")
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.classpath("app.jar")
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.appCommandLine("GeneratedInternedStringApp")
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.runAOTWorkflow();
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}
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}
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// This class is cached in the AOT-initialized state. At the beginning of the production
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// run, all of the static fields in GeneratedInternedStringApp will retain their values
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// at the end of the assembly phase. GeneratedInternedStringApp::<clinit> is NOT executed in the
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// production run.
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class GeneratedInternedStringApp {
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static volatile int n = 0;
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static final String generatedInternedString = generate();
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public static void main(String args[]) {
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n = args.length;
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String b = generate();
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if (generatedInternedString != b) {
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throw new RuntimeException("generatedInternedString: " + System.identityHashCode(generatedInternedString)
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+ " vs b:" + System.identityHashCode(b));
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}
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}
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static String generate() {
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System.out.println("generate() is called");
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return ("GeneratedInternedStringApp_String" + n).intern();
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}
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}
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