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 4110528 4112112 4112103 26 @summary Test if zip related in/output streams will 27 prevent i/o after stream has been closed. 28 */ 29 import java.util.zip.*; 30 import java.util.jar.*; 31 import java.io.*; 32 33 public class StreamIOAfterClose { 34 // compressed stub data 35 private static byte[] compressed = { 36 31,-117,8,0,0,0,0,0,0,0,-85,-107,-79,74,85,97,117,48, 37 -9,117,-47,114,15,-87,-27,-9,-54,-48,49,-108,17,19,20, 38 118,-87,-84,78,-15,-10,-87,-112,51,115,16,85,81,54,11, 39 114,44,11,98,116,17,102,-10,72,-10,80,-79,101,14,47,-50, 40 16,117,-9,-83,16,13,-55,83,83,103,-30,-117,-42,-82,-105, 41 -119,46,-16,20,-111,-85,-16,-48,54,79,-53,-76,116, 42 -80,-78,77,-88,-85,50,113,-54,15,-74,-28,-44,101,-43,47, 43 85,54,-74,1,0,85,69,28,117,100,0,0,0 44 }; 45 testRead(InputStream in)46 private static void testRead(InputStream in) throws Exception { 47 in.close(); 48 try { 49 in.read(); 50 throw new Exception("read allowed after stream is closed"); 51 } catch (IOException e) { 52 } 53 } 54 testWrite(ZipOutputStream out)55 private static void testWrite(ZipOutputStream out) throws Exception { 56 out.close(); 57 try { 58 out.putNextEntry(new ZipEntry("")); 59 throw new Exception("write allowed after stream is closed"); 60 } catch (IOException e) { 61 } 62 } 63 main(String argv[])64 public static void main(String argv[]) throws Exception { 65 ZipOutputStream zos = new ZipOutputStream(new ByteArrayOutputStream()); 66 zos.putNextEntry(new ZipEntry("1")); 67 testWrite(zos); 68 69 JarOutputStream jos = new JarOutputStream(new ByteArrayOutputStream()); 70 jos.putNextEntry(new ZipEntry("1")); 71 testWrite(jos); 72 73 InputStream bis = new ByteArrayInputStream(new byte[10]); 74 InputStream bis1 = new ByteArrayInputStream(compressed); 75 testRead(new ZipInputStream(bis)); 76 testRead(new GZIPInputStream(bis1)); 77 } 78 } 79