59 lines
2.0 KiB
Java
59 lines
2.0 KiB
Java
/*
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* Copyright (c) 2014, 2019, 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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* @library /test/lib
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* @summary Proof of concept test for RedefineClassHelper
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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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* @run main RedefineClassHelper
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* @run main/othervm -javaagent:redefineagent.jar RedefineClassTest
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*/
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import static jdk.test.lib.Asserts.*;
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/*
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* Proof of concept test for the test utility class RedefineClassHelper
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*/
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// package access top-level class to avoid problem with RedefineClassHelper
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// and nested types.
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class RedefineClassTest_A {
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public int Method() {
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return 1;
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}
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}
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public class RedefineClassTest {
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public static String newClass = "class RedefineClassTest_A { public int Method() { return 2; } }";
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public static void main(String[] args) throws Exception {
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RedefineClassTest_A a = new RedefineClassTest_A();
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assertTrue(a.Method() == 1);
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RedefineClassHelper.redefineClass(RedefineClassTest_A.class, newClass);
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assertTrue(a.Method() == 2);
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}
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}
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