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73 lines
2.8 KiB
Java
73 lines
2.8 KiB
Java
/*
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* Copyright (c) 2024, 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
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* @bug 8344904
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* @summary make sure all interned strings in old classes are archived.
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* @requires vm.cds.write.archived.java.heap
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* @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds
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* @build OldClassWithStaticString
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* @build StaticStringInOldClass
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* @run driver jdk.test.lib.helpers.ClassFileInstaller
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* -jar StaticStringInOldClass.jar StaticStringInOldClass StaticStringInOldClassApp OldClassWithStaticString
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* @run driver StaticStringInOldClass
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*/
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import java.lang.reflect.Field;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.helpers.ClassFileInstaller;
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public class StaticStringInOldClass {
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static final String appClass = StaticStringInOldClassApp.class.getName();
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static String[] classes = {
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appClass,
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OldClassWithStaticString.class.getName(),
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};
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public static void main(String[] args) throws Exception {
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String appJar = ClassFileInstaller.getJarPath("StaticStringInOldClass.jar");
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OutputAnalyzer output;
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output = TestCommon.testDump(appJar, TestCommon.list(classes));
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output = TestCommon.exec(appJar, appClass);
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TestCommon.checkExec(output, "Hello");
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}
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}
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class StaticStringInOldClassApp {
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static String a = "xxxx123";
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public static void main(String args[]) throws Exception {
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System.out.println("Hello");
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String x = (a + "yyyy456").intern();
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Class c = OldClassWithStaticString.class;
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Field f = c.getField("s");
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String y = (String)(f.get(null));
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if (x != y) {
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throw new RuntimeException("Interned strings not equal: " +
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"\"" + x + "\" @ " + System.identityHashCode(x) + " vs " +
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"\"" + y + "\" @ " + System.identityHashCode(y));
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}
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}
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}
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