| /* |
| * Copyright (c) 1997, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| @bug 4089062 |
| @summary A String created from a StringBuffer can be overwritten |
| if setLength() to a value less than the buffer length is called |
| on the StringBuffer and then the StringBuffer is appended to. |
| @author Robert Field |
| */ |
| |
| public class SetLength { |
| public static void main(String[] argv) throws Exception { |
| StringBuffer active = new StringBuffer(); |
| active.append("first one"); |
| String a = active.toString(); |
| active.setLength(0); |
| active.append("second"); |
| String b = active.toString(); |
| active.setLength(0); |
| System.out.println("first: " + a); |
| System.out.println("second: " + b); |
| if (!a.equals("first one")) { |
| throw new Exception("StringBuffer.setLength() overwrote string"); |
| } |
| } |
| } |