1 /* 2 * Copyright (c) 2001, 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 4486049 27 * @summary toString method fails if size changes in between a call to size 28 * and an attempt to iterate. 29 * @author Josh Bloch 30 */ 31 32 package test.java.util.AbstractMap; 33 34 import java.util.LinkedHashMap; 35 import java.util.Map; 36 37 public class ToString { main(String[] args)38 public static void main(String[] args) { 39 Map m = new LyingMap(); 40 if (!m.toString().equals("{}")) 41 throw new RuntimeException(m.toString() + "!= {}"); 42 43 m.put("x", "1"); 44 if (!m.toString().equals("{x=1}")) 45 throw new RuntimeException(m.toString() + "!= {x=1}"); 46 47 m.put("y", "2"); 48 if (!m.toString().equals("{x=1, y=2}")) 49 throw new RuntimeException(m.toString() + "!= {x=1, y=2}"); 50 } 51 } 52 53 class LyingMap extends LinkedHashMap { size()54 public int size() { 55 return super.size() + 1; // Lies, lies, all lies! 56 } 57 } 58