129 lines
4.7 KiB
Java
129 lines
4.7 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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* @summary AOT resolution of VarHandle invocation
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* @bug 8343245
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* @requires vm.cds
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* @requires vm.cds.supports.aot.class.linking
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* @library /test/lib
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* @build AOTLinkedVarHandles
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* @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar
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* AOTLinkedVarHandlesApp AOTLinkedVarHandlesApp$Data
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* @run driver AOTLinkedVarHandles
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*/
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.VarHandle;
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import jdk.test.lib.cds.CDSOptions;
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import jdk.test.lib.cds.CDSTestUtils;
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import jdk.test.lib.helpers.ClassFileInstaller;
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import jdk.test.lib.process.OutputAnalyzer;
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public class AOTLinkedVarHandles {
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static final String classList = "AOTLinkedVarHandles.classlist";
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static final String appJar = ClassFileInstaller.getJarPath("app.jar");
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static final String mainClass = AOTLinkedVarHandlesApp.class.getName();
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public static void main(String[] args) throws Exception {
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CDSTestUtils.dumpClassList(classList, "-cp", appJar, mainClass)
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.assertNormalExit(output -> {
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output.shouldContain("Hello AOTLinkedVarHandlesApp");
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});
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CDSOptions opts = (new CDSOptions())
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.addPrefix("-XX:ExtraSharedClassListFile=" + classList,
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"-XX:+AOTClassLinking",
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"-Xlog:cds+resolve=trace",
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"-Xlog:cds+class=debug",
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"-cp", appJar);
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String s = "archived method CP entry.* AOTLinkedVarHandlesApp ";
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OutputAnalyzer dumpOut = CDSTestUtils.createArchiveAndCheck(opts);
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dumpOut.shouldMatch(s + "java/lang/invoke/VarHandle.compareAndExchangeAcquire:\\(\\[DIDI\\)D =>");
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dumpOut.shouldMatch(s + "java/lang/invoke/VarHandle.get:\\(\\[DI\\)D => ");
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CDSOptions runOpts = (new CDSOptions())
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.setUseVersion(false)
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.addPrefix("-Xlog:cds",
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"-esa",
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"-cp", appJar)
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.addSuffix(mainClass);
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CDSTestUtils.run(runOpts)
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.assertNormalExit("Hello AOTLinkedVarHandlesApp");
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}
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}
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class AOTLinkedVarHandlesApp {
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static final VarHandle initialized;
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static final VarHandle lazy;
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static long longField = 5678;
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static long seed;
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static {
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try {
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lazy = MethodHandles.lookup().findStaticVarHandle(Data.class, "longField", long.class);
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initialized = MethodHandles.lookup().findStaticVarHandle(AOTLinkedVarHandlesApp.class, "longField", long.class);
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} catch (ReflectiveOperationException e) {
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throw new RuntimeException(e);
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}
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}
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static class Data {
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static long longField = seed;
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}
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public static void main(String args[]) {
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seed = 1234;
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System.out.println("Hello AOTLinkedVarHandlesApp");
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long a = (long) lazy.get();
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long b = (long) initialized.get();
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System.out.println(a);
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System.out.println(b);
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if (a != 1234) {
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throw new RuntimeException("Data class should not be initialized: " + a);
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}
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if (b != 5678) {
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throw new RuntimeException("VarHandle.get() failed: " + b);
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}
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VarHandle vh = MethodHandles.arrayElementVarHandle(double[].class);
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double[] array = new double[] {1.0};
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int index = 0;
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int v = 4;
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// JDK-8343245 -- this generates "java.lang.invoke.LambdaForm$VH/0x80????" hidden class
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double r = (double) vh.compareAndExchangeAcquire(array, index, 1.0, v);
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if (r != 1.0) {
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throw new RuntimeException("Unexpected result: " + r);
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}
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r = (double) vh.get(array, index);
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if (r != 4.0) {
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throw new RuntimeException("Unexpected result: " + r);
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}
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}
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}
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