| /* |
| * Copyright (c) 2005, 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 6266377 |
| * @summary Test to ensure that BufferedWriter releases |
| * resources if flushing the buffer results in an |
| * exception during a call to close(). |
| */ |
| |
| import java.io.*; |
| |
| public class Cleanup extends Thread { |
| |
| static PipedWriter w; |
| static PipedReader r; |
| static boolean isWriterClosed = false; |
| |
| public void run() { |
| try { |
| System.out.println("Reader reading..."); |
| r.read(new char[2048], 0, 2048); |
| |
| // Close abruptly before reading all the bytes |
| System.out.println("Reader closing stream..."); |
| r.close(); |
| |
| Thread.sleep(3000); |
| } catch (Throwable e) { |
| System.out.println("Reader exception:"); |
| e.printStackTrace(); |
| } |
| } |
| |
| public static void main(String args[]) throws Exception { |
| r = new PipedReader(); |
| w = new PipedWriter(r); |
| |
| Cleanup reader = new Cleanup(); |
| reader.start(); |
| |
| BufferedWriter bw = new BufferedWriter(w); |
| |
| boolean isWriterClosed = false; |
| |
| try { |
| System.out.println("Writer started."); |
| |
| for (int i = 0; i < 3; i++) { |
| bw.write(new char[1024], 0, (1024)); |
| } |
| |
| // This call to close() will raise an exception during |
| // flush() since the reader is already closed |
| bw.close(); |
| |
| } catch (Throwable e) { |
| try { |
| e.printStackTrace(); |
| |
| // Make sure that the BufferedWriter releases the resources |
| // A write to a properly closed Writer should raise an exception |
| bw.write('a'); |
| |
| } catch (IOException ex) { |
| ex.printStackTrace(); |
| isWriterClosed = true; |
| } |
| } finally { |
| System.out.println("Writer done."); |
| reader.join(); |
| if (!isWriterClosed) { |
| throw new Exception("BufferedWriter is not closed properly"); |
| } |
| } |
| } |
| } |