/* * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 8225325 * @summary Add tests for redefining a class' private method during resolution of the bootstrap specifier * @library /test/lib * @modules java.base/jdk.internal.misc * @modules java.compiler * java.instrument * @compile ../NamedBuffer.java * @compile redef/Xost.java * @run main RedefineClassHelper * @run main/othervm -javaagent:redefineagent.jar -Xlog:redefine+class*=trace RedefineInterfaceMethods */ class Host { static void log(String msg) { System.out.println(msg); } static interface B { int ORIGINAL_RETURN = 1; int NEW_RETURN = 2; private int privateMethod() { Runnable race1 = () -> log("Hello from inside privateMethod"); race1.run(); return ORIGINAL_RETURN; } public default int defaultMethod(String p) { log(p + "from interface B's defaultMethod"); return privateMethod(); } } static class Impl implements B { } } public class RedefineInterfaceMethods { private static byte[] bytesForHostClass(char replace) throws Throwable { return NamedBuffer.bytesForHostClass(replace, "Host$B"); } public static void main(String[] args) throws Throwable { Host.Impl impl = new Host.Impl(); int res = impl.defaultMethod("Hello "); if (res != Host.B.ORIGINAL_RETURN) throw new Error("defaultMethod returned " + res + " expected " + Host.B.ORIGINAL_RETURN); byte[] buf = bytesForHostClass('X'); RedefineClassHelper.redefineClass(Host.B.class, buf); res = impl.defaultMethod("Goodbye "); if (res != Host.B.NEW_RETURN) throw new Error("defaultMethod returned " + res + " expected " + Host.B.NEW_RETURN); } }