test/hotspot/jtreg/runtime/Nestmates/privateConstructors/TestConstructorHierarchy.java
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8010319: Implementation of JEP 181: Nest-Based Access Control Reviewed-by: alanb, psandoz, mchung, coleenp, acorn, mcimadamore, forax, jlahoda, sspitsyn, abuckley Contributed-by: alex.buckley@oracle.com, maurizio.mimadamore@oracle.com, mandy.chung@oracle.com, tobias.hartmann@oracle.com, david.holmes@oracle.com, vladimir.x.ivanov@oracle.com, karen.kinnear@oracle.com, vladimir.kozlov@oracle.com, john.r.rose@oracle.com, daniel.smith@oracle.com, serguei.spitsyn@oracle.com, kumardotsrinivasan@gmail.com, boris.ulasevich@bell-sw.com
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/*
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 * Copyright (c) 2017, 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 8046171
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 * @summary Test access to private constructors in the hierarchy that are
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 * outside the nest
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 * @compile TestConstructorHierarchy.java
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 * @compile ExternalSuper.jcod
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 *          ExternalSub.jcod
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 * @run main TestConstructorHierarchy
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 */
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public class TestConstructorHierarchy {
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    static class NestedA extends ExternalSuper {
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        private NestedA() {}
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        protected NestedA(int i) {} // for compile-time only
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    }
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    // Access to private members of classes outside the nest is
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    // not permitted. These tests should throw IllegalAccessError
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    // at runtime. To allow them to compile the classes below are
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    // defined with public members. We then replace those class files
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    // with jcod variants that make the member private again.
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    public static void main(String[] args) throws Throwable {
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        try {
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            new ExternalSuper();
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            throw new Error("Unexpected construction of ExternalSuper");
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        }
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        catch (IllegalAccessError iae) {
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            if (iae.getMessage().contains("tried to access method ExternalSuper.<init>()V from class TestConstructorHierarchy")) {
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                System.out.println("Got expected exception constructing ExternalSuper: " + iae);
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            }
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            else throw new Error("Unexpected IllegalAccessError: " + iae);
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        }
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        try {
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            new NestedA();
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            throw new Error("Unexpected construction of NestedA and supers");
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        }
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        catch (IllegalAccessError iae) {
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            if (iae.getMessage().contains("tried to access method ExternalSuper.<init>()V from class TestConstructorHierarchy$NestedA")) {
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                System.out.println("Got expected exception constructing NestedA: " + iae);
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            }
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            else throw new Error("Unexpected IllegalAccessError: " + iae);
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        }
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        try {
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            new ExternalSub();
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            throw new Error("Unexpected construction of ExternalSub");
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        }
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        catch (IllegalAccessError iae) {
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            if (iae.getMessage().contains("tried to access method TestConstructorHierarchy$NestedA.<init>()V from class ExternalSub")) {
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                System.out.println("Got expected exception constructing ExternalSub: " + iae);
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            }
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            else throw new Error("Unexpected IllegalAccessError: " + iae);
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        }
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    }
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}
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// Classes that are not part of the nest.
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// Being non-public allows us to declare them in this file.
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// The constructor is public to allow this file to compile, but
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// the jcod files change it back to private.
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class ExternalSuper {
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    public ExternalSuper() { }
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}
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class ExternalSub extends TestConstructorHierarchy.NestedA {
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    public ExternalSub() {
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        super(0); // this is changed to super() in jcod file
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    }
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}