1/* 2 * Copyright (c) 2002, 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 * @bug 4773447 26 * @summary Test Channels.newInputStream.read() method 27 */ 28 29import java.nio.ByteBuffer; 30import java.nio.channels.ReadableByteChannel; 31import java.nio.channels.Channels; 32import java.io.InputStream; 33import java.io.IOException; 34 35public class ReadByte { 36 public static void main(String[] args) throws IOException { 37 ReadableByteChannel channel = new ReadableByteChannel() { 38 public int read(ByteBuffer dst) { 39 dst.put((byte) 129); 40 return 1; 41 } 42 43 public boolean isOpen() { 44 return true; 45 } 46 47 public void close() { 48 } 49 }; 50 51 InputStream in = Channels.newInputStream(channel); 52 int data = in.read(); 53 if (data < 0) 54 throw new RuntimeException( 55 "InputStream.read() spec'd to return 0-255"); 56 } 57} 58