Mon, 21 May 2012 16:10:14 -0700
7157798: Add 6 test scenarios for testing inheritance of multiple same-name methods from mulitple interfaces
Reviewed-by: mcimadamore
Contributed-by: sue.wei@oracle.com
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 +}
2.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 2.2 +++ b/test/tools/javac/generics/rawOverride/7157798/Test2.java Mon May 21 16:10:14 2012 -0700 2.3 @@ -0,0 +1,76 @@ 2.4 +/* 2.5 + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. 2.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 2.7 + * 2.8 + * This code is free software; you can redistribute it and/or modify it 2.9 + * under the terms of the GNU General Public License version 2 only, as 2.10 + * published by the Free Software Foundation. 2.11 + * 2.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 2.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 2.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 2.15 + * version 2 for more details (a copy is included in the LICENSE file that 2.16 + * accompanied this code). 2.17 + * 2.18 + * You should have received a copy of the GNU General Public License version 2.19 + * 2 along with this work; if not, write to the Free Software Foundation, 2.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2.21 + * 2.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2.23 + * or visit www.oracle.com if you need additional information or have any 2.24 + * questions. 2.25 + */ 2.26 + 2.27 +/** 2.28 + * @test 2.29 + * @bug 7062745 7157798 2.30 + * @summary Test inheritance of same-name methods from multiple interfaces 2.31 + when the methods have compatible parameter types and return types 2.32 + * @compile Test2.java 2.33 + */ 2.34 + 2.35 +import java.util.*; 2.36 + 2.37 +interface A { void m(Map map); } 2.38 +interface B { void m(Map<Number, String> map); } 2.39 + 2.40 +interface AB extends A, B {} //paramter type: Map<Number, String> 2.41 + 2.42 +interface C<K, V> { List<V> getList(Map<K, V> map); } 2.43 +interface D { ArrayList getList(Map map); } 2.44 + 2.45 +interface CD<K, V> extends C<K, V>, D {} //paramter type: Map<K, V> 2.46 + 2.47 +interface E<T> { T get(List<?> list); } 2.48 +interface F<T> { T get(List list); } 2.49 + 2.50 +interface EF<T1, T2 extends T1> extends E<T1>, F<T2> {} //parameter type: List<?> 2.51 + 2.52 +class Test2 { 2.53 + 2.54 + //compatible parameter types: 2.55 + void test(AB ab) { 2.56 + ab.m(new HashMap<Number, String>()); 2.57 + } 2.58 + 2.59 + //compatible parameter types and return types: 2.60 + void testRaw(CD cd) { //return type: ArrayList 2.61 + ArrayList al = cd.getList(new HashMap()); 2.62 + } 2.63 + 2.64 + <K, V> void testGeneric(CD<K, V> cd) { //return type: List<V> 2.65 + V v = cd.getList(new HashMap<K, V>()).get(0); 2.66 + } 2.67 + 2.68 + void test(CD<Number, String> cd) { //return type: List<String> 2.69 + String s = cd.getList(new HashMap<Number, String>()).get(0); 2.70 + } 2.71 + 2.72 + void test(EF<Number, Integer> ef) { //return type: Number 2.73 + Number n = ef.get(new ArrayList<Integer>()); 2.74 + } 2.75 + 2.76 + <T, U extends T> void testGeneric(EF<T, U> ef) { //return type: T 2.77 + T t = ef.get(new ArrayList<U>()); 2.78 + } 2.79 +}
3.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 3.2 +++ b/test/tools/javac/generics/rawOverride/7157798/Test3.java Mon May 21 16:10:14 2012 -0700 3.3 @@ -0,0 +1,37 @@ 3.4 +/** 3.5 + * @test /nodynamiccopyright/ 3.6 + * @bug 7062745 7157798 3.7 + * @summary Negative test of conflicting same-name methods inherited from multiple interfaces when return type not compatible 3.8 + * @compile/fail/ref=Test3.out -Werror -Xlint:unchecked -XDrawDiagnostics Test3.java 3.9 + */ 3.10 + 3.11 +import java.util.List; 3.12 +import java.io.Serializable; 3.13 + 3.14 +interface A { int m(); } 3.15 +interface B { Integer m(); } 3.16 + 3.17 +interface AB extends A, B {} //error 3.18 + 3.19 +interface C { List<Integer> m(); } 3.20 +interface D { List<Number> m(); } 3.21 + 3.22 +interface CD extends C, D {} //error 3.23 + 3.24 +interface E<T> { T m(); } 3.25 +interface F<T> { T m(); } 3.26 +interface G { Serializable m(); } 3.27 + 3.28 +interface BE extends B, E<Number> {} //ok, covariant return 3.29 + 3.30 +interface BE2<T> extends B, E<T> {} //error 3.31 + 3.32 +interface EF<T> extends E<T>, F<T> {} //ok 3.33 + 3.34 +interface EF2<U, V extends U> extends E<U>, F<V> {} //ok, covariant return 3.35 + 3.36 +interface EF3<U, V> extends E<U>, F<V> {} //error 3.37 + 3.38 +interface EG<T extends Number> extends E<T>, G {} //ok 3.39 + 3.40 +interface EFG<U extends Serializable, V extends Serializable> extends E<U>, F<V>, G {} //error
4.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 4.2 +++ b/test/tools/javac/generics/rawOverride/7157798/Test3.out Mon May 21 16:10:14 2012 -0700 4.3 @@ -0,0 +1,6 @@ 4.4 +Test3.java:14:1: compiler.err.types.incompatible.diff.ret: B, A, m() 4.5 +Test3.java:19:1: compiler.err.types.incompatible.diff.ret: D, C, m() 4.6 +Test3.java:27:1: compiler.err.types.incompatible.diff.ret: E<T>, B, m() 4.7 +Test3.java:33:1: compiler.err.types.incompatible.diff.ret: F<V>, E<U>, m() 4.8 +Test3.java:37:1: compiler.err.types.incompatible.diff.ret: F<V>, E<U>, m() 4.9 +5 errors
5.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 5.2 +++ b/test/tools/javac/generics/rawOverride/7157798/Test4.java Mon May 21 16:10:14 2012 -0700 5.3 @@ -0,0 +1,29 @@ 5.4 +/** 5.5 + * @test /nodynamiccopyright/ 5.6 + * @bug 7062745 7157798 5.7 + * @summary Negative test of conflicting same-name methods inherited from multiple interfaces when parameter types not compatible 5.8 + * @compile/fail/ref=Test4.out -Werror -Xlint:unchecked -XDrawDiagnostics Test4.java 5.9 + */ 5.10 + 5.11 +import java.util.Set; 5.12 +import java.util.HashSet; 5.13 + 5.14 +interface A { void m(Set<Integer> s); } 5.15 +interface B { void m(Set<String> s); } 5.16 +interface C { void m(Set<?> s); } 5.17 + 5.18 +interface AB extends A, B {} //error 5.19 + 5.20 +interface AC extends A, C {} //error 5.21 + 5.22 +interface D<T> { void m(Set<T> s); } 5.23 + 5.24 +interface AD extends A, D<Integer> {} //OK 5.25 + 5.26 +interface AD2 extends A, D<Number> {} //error 5.27 + 5.28 +interface CD<T> extends C, D<T> {} //error 5.29 + 5.30 +interface E { <T> void m(Set<T> s); } 5.31 + 5.32 +interface DE<T> extends D<T>, E {} //error
6.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 6.2 +++ b/test/tools/javac/generics/rawOverride/7157798/Test4.out Mon May 21 16:10:14 2012 -0700 6.3 @@ -0,0 +1,6 @@ 6.4 +Test4.java:15:1: compiler.err.name.clash.same.erasure.no.override: m(java.util.Set<java.lang.String>), B, m(java.util.Set<java.lang.Integer>), A 6.5 +Test4.java:17:1: compiler.err.name.clash.same.erasure.no.override: m(java.util.Set<?>), C, m(java.util.Set<java.lang.Integer>), A 6.6 +Test4.java:23:1: compiler.err.name.clash.same.erasure.no.override: m(java.util.Set<T>), D, m(java.util.Set<java.lang.Integer>), A 6.7 +Test4.java:25:1: compiler.err.name.clash.same.erasure.no.override: m(java.util.Set<T>), D, m(java.util.Set<?>), C 6.8 +Test4.java:29:1: compiler.err.name.clash.same.erasure.no.override: <T>m(java.util.Set<T>), E, m(java.util.Set<T>), D 6.9 +5 errors