/*
* Copyright ( c ) 2001 , 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 4494818
* @ summary Test reading 0 bytes over a pipe
*/
import java.io.*;
import java.nio.ByteBuffer;
import java.nio.channels.*;
import java.nio.channels.spi.SelectorProvider;
/**
* Testing PipeChannel
*/
public class EmptyRead {
public static void main(String[] args) throws Exception {
SelectorProvider sp = SelectorProvider.provider();
Pipe p = sp.openPipe();
Pipe.SinkChannel sink = p.sink();
Pipe.SourceChannel source = p.source();
byte [] someBytes = new byte [0 ];
ByteBuffer outgoingdata = ByteBuffer.wrap(someBytes);
int totalWritten = 0 ;
int written = sink.write(outgoingdata);
if (written < 0 )
throw new Exception("Write failed" );
ByteBuffer incomingdata = ByteBuffer.allocateDirect(0 );
int read = source.read(incomingdata);
if (read < 0 )
throw new Exception("Read EOF" );
sink.close();
source.close();
}
}
Messung V0.5 in Prozent C=95 H=91 G=92
¤ Dauer der Verarbeitung: 0.2 Sekunden
(vorverarbeitet am 2026-10-11)
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