/*
* 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" );
}
}
}
}
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¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-11)
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