1/* 2 * Copyright (c) 2009, 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 6650759 27 * @summary Inference of formal type parameter (unused in formal parameters) is not performed 28 * @compile T6650759c.java 29 */ 30 31import java.util.Collection; 32import java.util.Collections; 33 34public class T6650759c { 35 36 static interface A {} 37 38 static interface B<X extends A> {} 39 40 static interface C<X extends A, Y extends B<X>> {} 41 42 public static <T extends A, U extends B<T>> Collection<C<T,U>> get(U u) { 43 return null; 44 } 45 46 public <T extends A, U extends B<T>> Collection<C<T,U>> test(U u) { 47 return Collections.unmodifiableCollection(get(u)); 48 } 49} 50