Tue, 31 May 2016 10:20:43 -0700
Merge
duke@1 | 1 | /* |
ohair@554 | 2 | * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@1 | 4 | * |
duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@1 | 7 | * published by the Free Software Foundation. |
duke@1 | 8 | * |
duke@1 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@1 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@1 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@1 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@1 | 13 | * accompanied this code). |
duke@1 | 14 | * |
duke@1 | 15 | * You should have received a copy of the GNU General Public License version |
duke@1 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@1 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@1 | 18 | * |
ohair@554 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@554 | 20 | * or visit www.oracle.com if you need additional information or have any |
ohair@554 | 21 | * questions. |
duke@1 | 22 | */ |
duke@1 | 23 | |
duke@1 | 24 | /* |
duke@1 | 25 | * @test |
duke@1 | 26 | * @bug 5009712 |
duke@1 | 27 | * @summary 1.4 javac should not accept the Covariant Return Type |
duke@1 | 28 | * @author gafter |
duke@1 | 29 | * |
duke@1 | 30 | * @compile/fail -source 1.4 ExtendCovariant2.java |
darcy@289 | 31 | * @compile ExtendCovariant2.java |
duke@1 | 32 | */ |
duke@1 | 33 | |
duke@1 | 34 | /** |
duke@1 | 35 | * java.io.PrintStream java.io.PrintStream.append(char) |
duke@1 | 36 | * |
duke@1 | 37 | * overrides |
duke@1 | 38 | * |
duke@1 | 39 | * java.lang.Appendable java.lang.Appendable.append(char) |
duke@1 | 40 | * |
duke@1 | 41 | * Yet javac should allow extending PrintStream, as long as the user |
duke@1 | 42 | * doesn't directly override a covariant method in -source 1.4. |
duke@1 | 43 | **/ |
duke@1 | 44 | public class ExtendCovariant2 extends java.io.PrintStream { |
duke@1 | 45 | ExtendCovariant2() throws java.io.IOException { |
duke@1 | 46 | super(""); |
duke@1 | 47 | } |
duke@1 | 48 | public java.io.PrintStream append(char c) { |
duke@1 | 49 | return this; |
duke@1 | 50 | } |
duke@1 | 51 | } |