CastTest.java revision 553
220N/A * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. 220N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 220N/A * This code is free software; you can redistribute it and/or modify it 220N/A * under the terms of the GNU General Public License version 2 only, as 220N/A * published by the Free Software Foundation. 220N/A * 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 * @summary Test casts (legal, warning, and errors) // --- Directly transferring parameters --- private class AB<T>
extends AA<T> { }
private class AD<T>
extends AA<
Vector<?
extends T>> { }
private class AE<T>
extends AA<
Vector<?
super T>> { }
private class AF<T>
extends AA<T[]> { }
// --- Inconsistent matches --- private class BB<T, S> { }
private class BD<T>
extends BB<T, T> { }
// 4916620: wildcards: legal cast is rejected // bd = (BD<Number>) bb; // <<warn>> <<todo: cast-infer>> // --- Transferring parameters via supertypes --- private interface CA<T> { }
private interface CB<T>
extends CA<T> { }
private interface CC<T>
extends CA<T> { }
private class CD<T>
implements CB<T> { }
private interface CE<T>
extends CC<T> { }
private interface CF<S> { }
private interface CG<T> { }
private class CH<S, T>
implements CF<S>,
CG<T> { }
private interface CI<S>
extends CF<S> { }
private interface CJ<T>
extends CG<T> { }
private interface CK<S, T>
extends CI<S>,
CJ<T> { }
// 4916622: unnecessary warning with cast // o = (CH<String, Integer>) (CK<String, Integer>) null; // <<pass>> <<todo: cast-infer>> private interface DA<T> { }
private interface DB<T>
extends DA<T> { }
// reported broken (5034609) // o = (DC<?>) (DA<?>) null; // <<pass>>