1/* 2 * Copyright (c) 1998, 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 4072173 26 @summary Test BufferdInputStream close method */ 27 28import java.io.*; 29 30/** 31 * This class tests to see if BufferedInputStream closes 32 * properly 33 */ 34 35public class CloseStream { 36 37 public static void main( String argv[] ) throws Exception { 38 BufferedInputStream in = new BufferedInputStream(new MyInputStream()); 39 40 in.read(); 41 in.close(); 42 43 try { 44 in.read(); // IOException should be thrown here 45 throw new RuntimeException("No exception during read on closed stream"); 46 } 47 catch (IOException e) { 48 System.err.println("Test passed: IOException is thrown"); 49 } 50 } 51} 52 53class MyInputStream extends InputStream { 54 55 public MyInputStream() { 56 } 57 58 public void close() throws IOException { 59 if (status == OPEN) { 60 status = CLOSED; 61 } else throw new IOException(); 62 } 63 64 public int read() throws IOException { 65 if (status == CLOSED) 66 throw new IOException(); 67 return (byte)'a'; 68 } 69 70 private final int OPEN = 1; 71 private final int CLOSED = 2; 72 private int status = OPEN; 73} 74