1/* 2 * Copyright (c) 2004, 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 5041041 26 * @summary Test BufferedInputStream read of zero byte array 27 */ 28 29import java.io.*; 30 31/** 32 * This class tests to see if BufferedInputStream of zero length array 33 * invokes the read method or not. Invoking read could block which is 34 * incompatible behavior for zero length array. 35 */ 36public class ReadZeroBytes { 37 38 public static void main( String argv[] ) throws Exception { 39 BufferedInputStream in = new BufferedInputStream( 40 new ThrowingInputStream()); 41 in.read(new byte[0], 0, 0); 42 } 43} 44 45class ThrowingInputStream extends InputStream { 46 47 public ThrowingInputStream() { 48 } 49 public int read() throws IOException { 50 return 0; 51 } 52 public int read(byte[] b, int off, int len) throws IOException { 53 throw new RuntimeException("Read invoked for len == 0"); 54 } 55} 56