1 /* 2 * Copyright 2002 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 4711570 27 * @summary generics: problem with methods when type parameter doesn't appear in signature 28 * @author gafter 29 * 30 * @compile -source 1.5 T4711570.java 31 */ 32 33 class T4711570 { 34 public static int fi() { 35 return fi(); 36 } 37 38 public static void gi() { 39 fi(); 40 gi(); 41 } 42 43 public static <T> int f() { 44 return f(); 45 } 46 47 public static <T> void g() { 48 f(); // incompatible.types found: <T>int required: java.lang.Object 49 int i = f(); // workaround for f() 50 g(); // incompatible.types found: <T>void required: java.lang.Object 51 } 52 // required type looks strange 53 54 public static <T> void h() { 55 g(); // incompatible.types found: <T>void required: java.lang.Object 56 } 57 58 public static <T> int f(T x) { 59 return f(x); 60 } 61 62 public static <T> void g(T x) { 63 f(x); 64 g(x); // incompatible.types found: <T>void required: java.lang.Object 65 } 66 67 public static <T> void h(T x) { 68 g(x); // works fine now; why not in void g(T x)? 69 } 70 }