/*
* 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");
}
}
}
}