1/* 2 * Copyright (c) 2007, 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 6541870 26 * @summary this test checks that ObjectInputStream throws an IOException 27 * instead of a NullPointerException when deserializing an ArrayList 28 * of Externalizables if there is an IOException while deserializing 29 * one of these Externalizables. 30 * 31 * @author Andrey Ozerov 32 */ 33 34import java.io.ByteArrayInputStream; 35import java.io.ByteArrayOutputStream; 36import java.io.IOException; 37import java.io.ObjectInput; 38import java.io.ObjectInputStream; 39import java.io.ObjectOutput; 40import java.io.ObjectOutputStream; 41import java.util.ArrayList; 42 43public class NPEProvoker implements java.io.Externalizable { 44 private String test = "test"; 45 46 public void readExternal(ObjectInput in) throws IOException, 47 ClassNotFoundException 48 { 49 throw new IOException(); //io exception for whatever reason 50 } 51 52 public void writeExternal(ObjectOutput out) throws IOException { 53 out.writeObject(test); 54 } 55 56 public static void main(String[] args) { 57 System.err.println("\n Regression test for bug 6541870\n"); 58 try { 59 ArrayList<NPEProvoker> list = new ArrayList<>(); 60 list.add(new NPEProvoker()); 61 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 62 ObjectOutputStream oos = new ObjectOutputStream(baos); 63 oos.writeObject(list); 64 65 ObjectInputStream ois = 66 new ObjectInputStream(new ByteArrayInputStream( 67 baos.toByteArray())); 68 ois.readObject(); 69 throw new Error(); 70 } catch (IOException e) { 71 System.err.println("\nTEST PASSED"); 72 } catch (ClassNotFoundException e) { 73 throw new Error(); 74 } catch (NullPointerException e) { 75 throw new Error(); 76 } 77 } 78} 79