84 lines
2.9 KiB
Java
84 lines
2.9 KiB
Java
/*
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* Copyright (c) 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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* @bug 8225325
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* @summary Add tests for redefining a class' private method during resolution of the bootstrap specifier
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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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* @compile ../NamedBuffer.java
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* @compile redef/Xost.java
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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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class Host {
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static void log(String msg) { System.out.println(msg); }
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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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Runnable race1 = () -> log("Hello from inside privateMethod");
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race1.run();
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return ORIGINAL_RETURN;
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}
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public default int defaultMethod(String p) {
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log(p + "from interface B's defaultMethod");
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return privateMethod();
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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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}
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public class RedefineInterfaceMethods {
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private static byte[] bytesForHostClass(char replace) throws Throwable {
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return NamedBuffer.bytesForHostClass(replace, "Host$B");
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}
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public static void main(String[] args) throws Throwable {
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Host.Impl impl = new Host.Impl();
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int res = impl.defaultMethod("Hello ");
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if (res != Host.B.ORIGINAL_RETURN)
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throw new Error("defaultMethod returned " + res +
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" expected " + Host.B.ORIGINAL_RETURN);
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byte[] buf = bytesForHostClass('X');
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RedefineClassHelper.redefineClass(Host.B.class, buf);
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res = impl.defaultMethod("Goodbye ");
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if (res != Host.B.NEW_RETURN)
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throw new Error("defaultMethod returned " + res +
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" expected " + Host.B.NEW_RETURN);
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}
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}
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