1 /* 2 * Copyright (c) 1997, 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 @bug 4017497 26 @summary Check that read returns -1 on EOF, as specified 27 */ 28 29 import java.io.*; 30 31 public class EOF { 32 main(String[] args)33 public static void main(String[] args) throws IOException { 34 byte buf[] = new byte[100]; 35 int n; 36 String dir = System.getProperty("test.src", "."); 37 RandomAccessFile raf = new RandomAccessFile(new File(dir, "EOF.java"), "r"); 38 try { 39 for (;;) { 40 n = raf.read(buf, 0, buf.length); 41 if (n <= 0) break; 42 } 43 if (n != -1) 44 throw new RuntimeException("Expected -1 for EOF, got " + n); 45 } finally { 46 raf.close(); 47 } 48 } 49 50 } 51