| /* |
| * Copyright (c) 2008, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @summary Verify that if InputStream.read returns 0 we throw an exception. |
| * @bug 4684515 |
| */ |
| |
| import java.io.*; |
| |
| public class ReadZero { |
| |
| public static void main(String [] args) throws IOException { |
| ReadZero r = new ReadZero(); |
| r.testInputStream(); |
| } |
| |
| private void testInputStream() throws IOException { |
| File f = new File(System.getProperty("test.src", "."), "ReadZero.java"); |
| InputStream is = new FileInputStream(f) { |
| public int read(byte [] b, int off, int len) { |
| System.out.println("FileInputStream.read"); |
| return 0; |
| } |
| }; |
| try { |
| is.read(new byte[1], 0, 1); // ok |
| InputStreamReader isr = new InputStreamReader(is); |
| |
| try { |
| int res = isr.read(new char[1], 0, 1); |
| } catch (IOException x) { |
| System.out.println("IOException caught"); |
| return; |
| } |
| } finally { |
| is.close(); |
| } |
| throw new RuntimeException("IOException not thrown"); |
| } |
| } |