9583e3657e
Co-authored-by: Ron Pressler <rpressler@openjdk.org> Co-authored-by: Alan Bateman <alanb@openjdk.org> Co-authored-by: Erik Österlund <eosterlund@openjdk.org> Co-authored-by: Andrew Haley <aph@openjdk.org> Co-authored-by: Rickard Bäckman <rbackman@openjdk.org> Co-authored-by: Markus Grönlund <mgronlun@openjdk.org> Co-authored-by: Leonid Mesnik <lmesnik@openjdk.org> Co-authored-by: Serguei Spitsyn <sspitsyn@openjdk.org> Co-authored-by: Chris Plummer <cjplummer@openjdk.org> Co-authored-by: Coleen Phillimore <coleenp@openjdk.org> Co-authored-by: Robbin Ehn <rehn@openjdk.org> Co-authored-by: Stefan Karlsson <stefank@openjdk.org> Co-authored-by: Thomas Schatzl <tschatzl@openjdk.org> Co-authored-by: Sergey Kuksenko <skuksenko@openjdk.org> Reviewed-by: lancea, eosterlund, rehn, sspitsyn, stefank, tschatzl, dfuchs, lmesnik, dcubed, kevinw, amenkov, dlong, mchung, psandoz, bpb, coleenp, smarks, egahlin, mseledtsov, coffeys, darcy
81 lines
2.9 KiB
Java
81 lines
2.9 KiB
Java
/*
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* Copyright (c) 2018, 2022, 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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* @test
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* @bug 8193524
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* @summary Redefine a class' public static method that contains a lambda expression
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* @requires vm.jvmti
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* @modules java.compiler
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* java.instrument
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* jdk.jartool/sun.tools.jar
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* @run main RedefineClassHelper
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* @run main/othervm -javaagent:redefineagent.jar -XX:+AllowRedefinitionToAddDeleteMethods -Xlog:redefine+class*=trace RedefineAddLambdaExpression
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*/
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interface MathOperation {
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public int operation(int a, int b);
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}
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class B {
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public static int operate(int a, int b, MathOperation mathOperation) {
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return mathOperation.operation(a, b);
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}
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static int test_math(String p) {
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MathOperation addition = (int a, int b) -> a + b;
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return operate(10, 5, addition);
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}
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}
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public class RedefineAddLambdaExpression {
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public static String newB = """
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class B {
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public static int operate(int a, int b, MathOperation mathOperation) {
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return mathOperation.operation(a, b);
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}
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static int test_math(String p) {
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MathOperation addition = (int a, int b) -> a + b;
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System.out.println(p + " from class B's test_math method");
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MathOperation subtraction = (int a, int b) -> a - b;
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return operate(10, 5, subtraction);
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}
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}
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""";
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public static void main(String[] args) throws Exception {
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int res = B.test_math("Hello");
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System.out.println("Result = " + res);
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if (res != 15) {
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throw new Error("test_math returned " + res + " expected " + 15);
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}
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RedefineClassHelper.redefineClass(B.class, newB);
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res = B.test_math("Hello");
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if (res != 5)
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throw new Error("test_math returned " + res + " expected " + 5);
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}
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}
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