105 lines
3.4 KiB
Java
105 lines
3.4 KiB
Java
/*
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* Copyright (c) 2016, 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 8081800
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* @summary Redefine private and default interface methods
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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 -Xlog:redefine+class*=trace RedefineInterfaceMethods
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*/
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public class RedefineInterfaceMethods {
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static final int RET = -2;
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static interface B {
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int ORIGINAL_RETURN = 1;
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int NEW_RETURN = 2;
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private int privateMethod() {
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return ORIGINAL_RETURN;
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}
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public default int defaultMethod() {
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return privateMethod();
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}
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}
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public static String redefinedPrivateMethod =
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"interface RedefineInterfaceMethods$B {" +
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" int ORIGINAL_RETURN = 1;" +
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" int NEW_RETURN = 2;" +
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" private int privateMethod() {" +
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" return NEW_RETURN;" +
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" }" +
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" public default int defaultMethod() {" +
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" return privateMethod();" +
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" }" +
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"}";
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public static String redefinedDefaultMethod =
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"interface RedefineInterfaceMethods$B {" +
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" int ORIGINAL_RETURN = 1;" +
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" int NEW_RETURN = 2;" +
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" private int privateMethod() {" +
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" return ORIGINAL_RETURN;" +
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" }" +
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" public default int defaultMethod() {" +
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" return RedefineInterfaceMethods.RET;" +
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" }" +
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"}";
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static class Impl implements B {
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}
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public static void main(String[] args) throws Exception {
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Impl impl = new Impl();
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int res = impl.defaultMethod();
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if (res != B.ORIGINAL_RETURN)
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throw new Error("defaultMethod returned " + res +
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" expected " + B.ORIGINAL_RETURN);
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RedefineClassHelper.redefineClass(B.class, redefinedPrivateMethod);
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res = impl.defaultMethod();
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if (res != B.NEW_RETURN)
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throw new Error("defaultMethod returned " + res +
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" expected " + B.NEW_RETURN);
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System.gc();
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RedefineClassHelper.redefineClass(B.class, redefinedDefaultMethod);
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res = impl.defaultMethod();
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if (res != RET)
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throw new Error("defaultMethod returned " + res +
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" expected " + RET);
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}
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}
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