66 lines
2.1 KiB
Java
66 lines
2.1 KiB
Java
/*
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* Copyright (c) 2021, 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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class SimpleLambda {
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public Runnable getRunnable() {
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return () -> {};
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}
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public OldProvider getProvider() {
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return () -> {
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return null;
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};
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}
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}
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public class RedefineCallerClass {
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public static String newClass =
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" class SimpleLambda { " +
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" public Runnable getRunnable() { " +
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" return () -> {}; " +
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" } " +
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" public OldProvider getProvider() { " +
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" return () -> { " +
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" return null; " +
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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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String mode = "both";
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if (args.length == 1) {
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mode = args[0];
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}
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SimpleLambda s = new SimpleLambda();
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if (mode.equals("both") || mode.equals("useOldInf")) {
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System.out.println(s.getProvider());
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} else {
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System.out.println(s.getRunnable());
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}
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if (mode.equals("both") || mode.equals("redefineCaller")) {
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RedefineClassHelper.redefineClass(s.getClass(), newClass);
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}
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}
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}
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