/*
* Copyright (c) 2001, 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
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*/
/* @test
* @summary Test read method of FileChannel
*/
import java.io.*;
import java.nio.*;
import java.nio.channels.*;
/**
* Testing a read into buffers that have no room.
*/
public class ReadFull {
public static void main(String[] args) throws Exception {
File blah = File.createTempFile("blah", null);
blah.deleteOnExit();
ByteBuffer[] dstBuffers = new ByteBuffer[10];
for(int i=0; i<10; i++) {
dstBuffers[i] = ByteBuffer.allocateDirect(10);
dstBuffers[i].position(10);
}
FileInputStream fis = new FileInputStream(blah);
FileChannel fc = fis.getChannel();
// No space left in buffers, this should return 0
long bytesRead = fc.read(dstBuffers) ;
if (bytesRead != 0)
throw new RuntimeException("Nonzero return from read");
fc.close();
fis.close();
blah.delete();
}
}