1 /* 2 * Copyright 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 5015676 4987888 4997464 27 * @summary Testing upper bounds and availability of toString methods 28 * @author Joseph D. Darcy 29 * @compile -source 1.5 StringsAndBounds.java 30 * @run main StringsAndBounds 31 */ 32 33 import java.lang.reflect.*; 34 import java.util.List; 35 import java.util.Collection; 36 37 class A<T> { 38 class B<U> {} 39 } 40 41 class Test<T> { 42 static class Inner1<U> { 43 void bar(U[] array1) { return;} 44 } 45 46 class Inner2<V> { 47 List<?> foo2(List<? extends V> t) { 48 return null; 49 } 50 } 51 52 static <S extends Object & Comparable<? super S> > S max(Collection<? extends S> coll) { 53 return null; 54 } 55 56 List<? extends T> foo(List<? super T> t) { 57 return null; 58 } 59 } 60 61 public class StringsAndBounds { 62 public void f(A<String>.B<Integer> x) { 63 } 64 65 public <T> void g(T a) {return ;} 66 67 static void scanner(Class clazz) { 68 System.out.println("\n\nScanning " + clazz.getName()); 69 70 for(Class c: clazz.getDeclaredClasses()) { 71 scanner(c); 72 } 73 74 for(Method m: clazz.getDeclaredMethods()) { 75 System.out.println("\nMethod:\t" + m.toString()); // Need toGenericString? 76 System.out.println("\tReturn Type: " + m.getGenericReturnType().toString() ); 77 for(Type p: m.getGenericParameterTypes()) { 78 if (p instanceof WildcardType) { // Check upper bounds 79 Type[] upperBounds = ((WildcardType)p).getUpperBounds(); 80 if (upperBounds.length < 1 || 81 upperBounds[0] == null) 82 throw new RuntimeException("Malformed upper bounds: " + p); 83 84 } 85 86 System.out.println("\tParameter: " + p.toString()); 87 } 88 } 89 } 90 91 public static void main(String[] argv) throws Exception { 92 scanner(StringsAndBounds.class); 93 scanner(A.B.class); 94 scanner(Test.class); 95 } 96 }