1/* 2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* @test 25 * @summary Test read method of FileChannel 26 */ 27 28import java.io.*; 29import java.nio.*; 30import java.nio.channels.*; 31 32 33/** 34 * Testing a read into buffers that have no room. 35 */ 36public class ReadFull { 37 38 public static void main(String[] args) throws Exception { 39 40 File blah = File.createTempFile("blah", null); 41 blah.deleteOnExit(); 42 ByteBuffer[] dstBuffers = new ByteBuffer[10]; 43 for(int i=0; i<10; i++) { 44 dstBuffers[i] = ByteBuffer.allocateDirect(10); 45 dstBuffers[i].position(10); 46 } 47 FileInputStream fis = new FileInputStream(blah); 48 FileChannel fc = fis.getChannel(); 49 50 // No space left in buffers, this should return 0 51 long bytesRead = fc.read(dstBuffers) ; 52 if (bytesRead != 0) 53 throw new RuntimeException("Nonzero return from read"); 54 55 fc.close(); 56 fis.close(); 57 blah.delete(); 58 } 59} 60