1/* 2 * Copyright (c) 2014, 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 8039214 27 * @summary Capture variables used for subtyping should not leak out of inference 28 * @compile SubtypeCaptureLeak.java 29 */ 30 31public class SubtypeCaptureLeak { 32 33 interface Parent<T> {} 34 interface Child<T> extends Parent<T> {} 35 interface Box<T> {} 36 interface SubBox<T> extends Box<T> {} 37 38 // applicability inference 39 40 <T> void m1(Parent<? extends T> arg) {} 41 42 void testApplicable(Child<?> arg) { 43 m1(arg); 44 } 45 46 // applicability inference, nested 47 48 <T> void m2(Box<? extends Parent<? extends T>> arg) {} 49 50 void testApplicable(Box<Child<?>> arg) { 51 m2(arg); 52 } 53 54 // most specific inference 55 56 <T> void m3(Parent<? extends T> arg) {} 57 void m3(Child<?> arg) {} 58 59 void testMostSpecific(Child<?> arg) { 60 m3(arg); 61 } 62 63 // most specific inference, nested 64 65 <T> void m4(Box<? extends Parent<? extends T>> arg) {} 66 void m4(SubBox<Child<?>> arg) {} 67 68 void testMostSpecificNested(SubBox<Child<?>> arg) { 69 m4(arg); 70 } 71 72} 73