1/* 2 * Copyright (c) 2004, 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 5015676 4987888 4997464 27 * @summary Testing upper bounds and availability of toString methods 28 * @author Joseph D. Darcy 29 */ 30 31import java.lang.reflect.*; 32import java.util.List; 33import java.util.Collection; 34 35class A<T> { 36 class B<U> {} 37} 38 39class Test<T> { 40 static class Inner1<U> { 41 void bar(U[] array1) { return;} 42 } 43 44 class Inner2<V> { 45 List<?> foo2(List<? extends V> t) { 46 return null; 47 } 48 } 49 50 static <S extends Object & Comparable<? super S> > S max(Collection<? extends S> coll) { 51 return null; 52 } 53 54 List<? extends T> foo(List<? super T> t) { 55 return null; 56 } 57} 58 59public class StringsAndBounds { 60 public void f(A<String>.B<Integer> x) { 61 } 62 63 public <T> void g(T a) {return ;} 64 65 static void scanner(Class clazz) { 66 System.out.println("\n\nScanning " + clazz.getName()); 67 68 for(Class c: clazz.getDeclaredClasses()) { 69 scanner(c); 70 } 71 72 for(Method m: clazz.getDeclaredMethods()) { 73 System.out.println("\nMethod:\t" + m.toString()); // Need toGenericString? 74 System.out.println("\tReturn Type: " + m.getGenericReturnType().toString() ); 75 for(Type p: m.getGenericParameterTypes()) { 76 if (p instanceof WildcardType) { // Check upper bounds 77 Type[] upperBounds = ((WildcardType)p).getUpperBounds(); 78 if (upperBounds.length < 1 || 79 upperBounds[0] == null) 80 throw new RuntimeException("Malformed upper bounds: " + p); 81 82 } 83 84 System.out.println("\tParameter: " + p.toString()); 85 } 86 } 87 } 88 89 public static void main(String[] argv) throws Exception { 90 scanner(StringsAndBounds.class); 91 scanner(A.B.class); 92 scanner(Test.class); 93 } 94} 95