109 lines
4.5 KiB
Java
109 lines
4.5 KiB
Java
/*
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* Copyright (c) 2021, 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 8344824
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* @summary CDS dump crashes when member_method of a lambda proxy is null
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* @requires vm.cds
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* @library /test/lib
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* @build LambdaInvokeVirtual
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* @run driver jdk.test.lib.helpers.ClassFileInstaller -jar LambdaInvokeVirtualApp.jar LambdaInvokeVirtualApp MyFunctionalInterface
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* @run driver LambdaInvokeVirtual
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*/
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodType;
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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 LambdaInvokeVirtual {
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public static void main(String[] args) throws Exception {
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String appJar = ClassFileInstaller.getJarPath("LambdaInvokeVirtualApp.jar");
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String mainClass = LambdaInvokeVirtualApp.class.getName();
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String namePrefix = "LambdaInvokeVirtualApp";
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String classList = namePrefix + ".list";
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String archiveName = namePrefix + ".jsa";
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// dump class list
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CDSTestUtils.dumpClassList(classList, "-cp", appJar, mainClass);
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// create archive with the class list
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CDSOptions opts = (new CDSOptions())
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.addPrefix("-XX:ExtraSharedClassListFile=" + classList,
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"-cp", appJar,
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"-Xlog:cds,cds+class=debug")
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.setArchiveName(archiveName);
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CDSTestUtils.createArchiveAndCheck(opts);
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// run with archive
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CDSOptions runOpts = (new CDSOptions())
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.addPrefix("-cp", appJar)
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.setArchiveName(archiveName)
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.setUseVersion(false)
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.addSuffix(mainClass);
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OutputAnalyzer output = CDSTestUtils.runWithArchive(runOpts);
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output.shouldHaveExitValue(0);
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}
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}
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interface MyFunctionalInterface {
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Object invokeMethodReference(String s, char c1, char c2) throws Throwable;
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}
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class LambdaInvokeVirtualApp {
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private static MethodHandle createMethodHandle() throws NoSuchMethodException, IllegalAccessException {
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MethodHandles.Lookup lookup = MethodHandles.lookup();
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MethodType mt = MethodType.methodType(String.class, char.class, char.class);
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return lookup.findVirtual(String.class, "replace", mt);
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}
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public static void main(String argv[]) throws Throwable {
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MethodHandle ms = createMethodHandle();
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MyFunctionalInterface instance = ms::invoke;
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/*
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The above is compiled into this bytecode. Note that the MethodHandle is of type REF_invokeVirtual
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invokedynamic InvokeDynamic REF_invokeStatic:Method java/lang/invoke/LambdaMetafactory.metafactory:"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;":invokeMethodReference:"(Ljava/lang/invoke/MethodHandle;)LMyFunctionalInterface;" {
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MethodType "(Ljava/lang/String;CC)Ljava/lang/Object;",
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MethodHandle REF_invokeVirtual:Method java/lang/invoke/MethodHandle.invoke:"(Ljava/lang/String;CC)Ljava/lang/Object;",
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MethodType "(Ljava/lang/String;CC)Ljava/lang/Object;"
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};
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*/
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Object result = instance.invokeMethodReference("some string to search", 's', 'o');
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String expected = "oome otring to oearch";
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if (!result.equals(expected)) {
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throw new RuntimeException("Expected \"" + expected + "\" but got \"" +
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result + "\"");
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}
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}
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}
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