1 /* 2 * Copyright (c) 2009, 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 import java.io.*; 24 import javax.xml.parsers.DocumentBuilderFactory; 25 import java.security.*; 26 27 public class Deadlock2 { main(String[] args)28 public static void main(String[] args) throws Exception { 29 File file = new File("object.tmp"); 30 final byte[] bytes = new byte[(int) file.length()]; 31 FileInputStream fileInputStream = new FileInputStream(file); 32 int read = fileInputStream.read(bytes); 33 if (read != file.length()) { 34 throw new Exception("Didn't read all"); 35 } 36 Thread.sleep(1000); 37 38 Runnable xmlRunnable = new Runnable() { 39 public void run() { 40 try { 41 DocumentBuilderFactory.newInstance(); 42 } catch (Exception e) { 43 e.printStackTrace(); 44 } 45 } 46 }; 47 48 Runnable readObjectRunnable = new Runnable() { 49 public void run() { 50 try { 51 ObjectInputStream objectInputStream = 52 new ObjectInputStream(new ByteArrayInputStream(bytes)); 53 Object o = objectInputStream.readObject(); 54 System.out.println(o.getClass()); 55 } catch (Exception e) { 56 e.printStackTrace(); 57 } 58 } 59 }; 60 61 Thread thread1 = new Thread(readObjectRunnable, "Read Object"); 62 Thread thread2 = new Thread(xmlRunnable, "XML"); 63 64 thread1.start(); 65 thread2.start(); 66 67 thread1.join(); 68 thread2.join(); 69 } 70 } 71