1 /* 2 * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 */ 23 24 /* 25 * @test 26 * @bug 4949303 4960369 4965756 27 * @summary Additional unit tests for covariant returns 28 * @author gafter 29 * 30 * @compile -source 1.5 Covar2.java 31 * @run main Covar2 32 */ 33 34 public class Covar2 { 35 static class A1 { 36 public Long f() { return 12L; } 37 } 38 static class B1 extends A1 { 39 public Long f() { return 12L; } 40 } 41 42 static class B2 { 43 public int f() { return 12; } 44 } 45 static class C2 extends B2 { 46 public int f() { return (short)12; } 47 } 48 49 static class C3 extends B2 { 50 public int f() { return (short)12; } 51 } 52 53 public static void main(String[] args) { 54 A1 b1 = new B1(); 55 System.out.println(b1.f()); 56 57 B2 c2 = new C2(); 58 System.out.println(c2.f()); 59 60 B2 c3 = new C3(); 61 System.out.println(c3.f()); 62 } 63 }