| /* |
| * Copyright (c) 1998, 2010, 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 4101707 |
| @summary Test if fill() will behave correctly at EOF to |
| allow file to grow. |
| */ |
| |
| import java.io.*; |
| |
| public class GrowAfterEOF { |
| public static void main(String[] args) throws Exception { |
| File input = new File(".", "TestEOFInput.txt"); |
| RandomAccessFile rf = new RandomAccessFile(input, "rw"); |
| try { |
| BufferedReader r = new BufferedReader |
| (new InputStreamReader(new FileInputStream(input))); |
| try { |
| // write something |
| rf.writeBytes("a line"); |
| |
| // read till the end of file |
| while (r.readLine() != null); |
| |
| // append to the end of the file |
| rf.seek(rf.length()); |
| rf.writeBytes("new line"); |
| |
| // now try to read again |
| boolean readMore = false; |
| while (r.readLine() != null) { |
| readMore = true; |
| } |
| if (!readMore) { |
| input.delete(); |
| throw new Exception("Failed test: unable to read!"); |
| } else { |
| input.delete(); |
| } |
| } finally { |
| r.close(); |
| } |
| } finally { |
| rf.close(); |
| } |
| } |
| } |