1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/generics/rawOverride/7157798/Test1.java Mon May 21 16:10:14 2012 -0700
1.3 @@ -0,0 +1,116 @@
1.4 +/*
1.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/**
1.28 + * @test
1.29 + * @bug 7062745 7157798
1.30 + * @summary Test inheritance of same-name methods from mulitple interfaces
1.31 + when the methods have compatible return types
1.32 + * @compile Test1.java
1.33 + */
1.34 +
1.35 +import java.util.*;
1.36 +
1.37 +interface A { List<Number> getList(); }
1.38 +interface B { List getList(); }
1.39 +
1.40 +interface AB extends A, B {} //return type: List<Number>
1.41 +
1.42 +interface C<T> { List<T> getList(); }
1.43 +
1.44 +interface BC<T> extends B, C<T> {} //return type: List<T>
1.45 +
1.46 +interface D { Number m(); }
1.47 +interface E { Double m(); }
1.48 +
1.49 +interface DE extends D, E {} //return type: Double
1.50 +
1.51 +interface F { ArrayList getList(); }
1.52 +interface G { Collection getList(); }
1.53 +
1.54 +interface AG extends A, G{}; //return type: List<Number>
1.55 +
1.56 +interface CF<T> extends C<T>, F {} //return type: ArrayList
1.57 +
1.58 +interface CG<T> extends C<T>, G {} //return type: List<T>
1.59 +
1.60 +interface H<T> { Iterable<T> getList(); }
1.61 +
1.62 +interface CH<T> extends C<T>, H<T> {} //return type: List<T>
1.63 +
1.64 +interface CFGH<T> extends C<T>, F, G, H<T> {} //return type: ArrayList
1.65 +
1.66 +
1.67 +class Test1 {
1.68 +
1.69 + //raw and typed return types:
1.70 + void test(AB ab) {
1.71 + Number n = ab.getList().get(1);
1.72 + }
1.73 +
1.74 + void test(BC<String> bc) {
1.75 + String s = bc.getList().get(1);
1.76 + }
1.77 +
1.78 + void testRaw(BC bc) {
1.79 + List list = bc.getList();
1.80 + }
1.81 +
1.82 + void testWildCard(BC<?> bc) {
1.83 + List<?> list = bc.getList();
1.84 + }
1.85 +
1.86 + <T> void testGeneric(BC<T> bc) {
1.87 + T t = bc.getList().get(1);
1.88 + }
1.89 +
1.90 + //covariant return:
1.91 + void test(DE de) {
1.92 + Double d = de.m();
1.93 + }
1.94 +
1.95 + //mixed:
1.96 + void test(AG ag) {
1.97 + Number n = ag.getList().get(0);
1.98 + }
1.99 +
1.100 + void test(CF<Integer> cf) {
1.101 + ArrayList list = cf.getList();
1.102 + }
1.103 +
1.104 + void test(CG<String> cg) {
1.105 + String s = cg.getList().get(0);
1.106 + }
1.107 +
1.108 + void test(CH<String> ch) {
1.109 + String s = ch.getList().get(0);
1.110 + }
1.111 +
1.112 + void test(CFGH<Double> cfgh) {
1.113 + ArrayList list = cfgh.getList();
1.114 + }
1.115 +
1.116 + void testWildCard(CFGH<?> cfgh) {
1.117 + ArrayList list = cfgh.getList();
1.118 + }
1.119 +}
