1 /* 2 * Copyright (c) 2003, 2007, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 4530962 27 * @summary Tests method search using parameter classes in Statement 28 * @author Mark Davidson 29 */ 30 31 import java.beans.Statement; 32 33 /** 34 * Ambiguous method signature should throw an exception. 35 * Statement should execute the most specific method. 36 */ 37 public class Test4530962 { main(String[] args)38 public static void main(String[] args) throws Exception { 39 try { 40 test(new A(), new Y(), new Y()); 41 throw new Error("exception expected"); 42 } 43 catch (NoSuchMethodException exception) { 44 // should throw an exception 45 } 46 catch (Exception exception) { 47 throw new Error("unexpected exception", exception); 48 } 49 test(new B(), new Y(), new Y()); 50 test(new C(), new Z(), new Z()); 51 test(new D(), new Z(), new Z()); 52 test(new E(), new Z(), new Z()); 53 } 54 test(Object target, Object... params)55 private static void test(Object target, Object... params) throws Exception { 56 new Statement(target, "m", params).execute(); 57 } 58 59 /** 60 * All ambiguous method declarations should fail. 61 */ 62 public static class A { m(X x1, X x2)63 public void m(X x1, X x2) { 64 throw new Error("A.m(X,X) should not be called"); 65 } 66 m(X x1, Y y2)67 public void m(X x1, Y y2) { 68 throw new Error("A.m(X,Y) should not be called"); 69 } 70 m(Y y1, X x2)71 public void m(Y y1, X x2) { 72 throw new Error("A.m(Y,X) should not be called"); 73 } 74 } 75 76 /** 77 * The most specific method in this case would be the second declaration. 78 */ 79 public static class B { m(X x1, X x2)80 public void m(X x1, X x2) { 81 throw new Error("B.m(X,X) should not be called"); 82 } 83 m(X x1, Y y2)84 public void m(X x1, Y y2) { 85 // expected: B.m(X,Y) should be called 86 } 87 } 88 89 /** 90 * The most specific method in this case would be the first declaration. 91 */ 92 public static class C { m(Y y1, Y y2)93 public void m(Y y1, Y y2) { 94 // expected: C.m(Y,Y) should be called 95 } 96 m(X x1, X x2)97 public void m(X x1, X x2) { 98 throw new Error("C.m(X,X) should not be called"); 99 } 100 } 101 102 /** 103 * Same as the previous case but flip methods. 104 */ 105 public static class D { m(X x1, X x2)106 public void m(X x1, X x2) { 107 throw new Error("D.m(X,X) should not be called"); 108 } 109 m(Y y1, Y y2)110 public void m(Y y1, Y y2) { 111 // expected: D.m(Y,Y) should be called 112 } 113 } 114 115 /** 116 * The method should be called with (Z,Z). 117 */ 118 public static class E { m(X x1, X x2)119 public void m(X x1, X x2) { 120 // expected: E.m(X,X) should be called 121 } 122 } 123 124 public static class X { 125 } 126 127 public static class Y extends X { 128 } 129 130 public static class Z extends Y { 131 } 132 } 133