1/* 2 * Copyright (c) 2013, 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 * @summary Check usages of underscore as identifier generate warnings 27 * @compile/fail/ref=UnderscoreAsIdent8.out -source 8 -Xlint:-options -XDrawDiagnostics -Werror UnderscoreAsIdent.java 28 * @compile/fail/ref=UnderscoreAsIdent9.out -XDrawDiagnostics -Werror UnderscoreAsIdent.java 29 */ 30package _._; 31 32import _._; 33 34class _ { 35 String _ = null; 36 void _(String _) { } 37 void testLocal() { 38 String _ = null; 39 } 40 void testFor() { 41 for (int _ = 0; _ < 10; _++); 42 } 43 void testTry() { 44 try { } catch (Throwable _) { } 45 } 46 void testLabel() { 47 _: 48 for (;;) { 49 break _; 50 } 51 _: 52 for (;;) { 53 continue _; 54 } 55 } 56} 57