/* * Copyright (c) 2017, 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 8046171 * @summary Test nestmate checks are no longer used when check_final_method_override is executed during parsing * @run main TestFinalMethodOverride */ // The check_final_method_override function in ClassfileParser uses an // accessability check to see if the subclass method overrides a same-named // superclass method. This would result in a nestmate access check if the // super class method is private, which in turn could lead to classloading // and possibly exceptions and cause havoc in the classfile parsing process. // To fix that we added a check for whether the super class method is private, // and if so, we skip the override check as by definition you can't override // a private method. // // This test simply sets up the case where a public subclass method has the // same signature as a private superclass method - the case we now skip when // doing check_final_method_override. The test should trivially complete // normally. public class TestFinalMethodOverride { public static class Super { private final void theMethod() {} } public static class Inner extends Super { // define our own theMethod public void theMethod() {} } public static void main(String[] args) { Inner i = new Inner(); } }