63baaf7a56
Updated tests to use Lookup.defineClass instead of ClassLoader.defineClass. Reviewed-by: iklam, dholmes, alanb
57 lines
2.2 KiB
Java
57 lines
2.2 KiB
Java
/*
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* Copyright (c) 2015, 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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import java.io.File;
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import java.lang.invoke.MethodHandles;
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import sun.hotspot.WhiteBox;
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public class RewriteBytecodes {
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public static void main(String args[]) throws Throwable {
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String from = "___xxx___";
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String to = "___yyy___";
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File clsFile = new File(args[0]);
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Class superClass = Util.defineModifiedClass(MethodHandles.lookup(), clsFile, from, to);
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Child child = new Child();
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if (child.getClass().getSuperclass() != superClass) {
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throw new RuntimeException("Mismatched super class");
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}
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// Even if the Super class is not loaded from the CDS archive, make sure the Child class
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// can still be loaded successfully, and properly inherits from the rewritten version
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// of Super.
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if (!child.toString().equals(to)) {
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throw new RuntimeException("Wrong output, expected: " + to + ", but got: " + child.toString());
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}
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WhiteBox wb = WhiteBox.getWhiteBox();
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if (wb.isSharedClass(superClass)) {
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throw new RuntimeException("wb.isSharedClass(superClass) should be false");
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}
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if (wb.isSharedClass(child.getClass())) {
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throw new RuntimeException("wb.isSharedClass(child.getClass()) should be false");
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}
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}
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}
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