1 /* 2 * Copyright (c) 2020, 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 /* 25 * @test 26 * @bug 8161558 27 * @summary ListIterator should not discard cause on exception 28 * @run testng CheckForIndexOutOfBoundsException 29 */ 30 31 package test.java.util.AbstractList; 32 33 import java.util.List; 34 import java.util.AbstractList; 35 import java.util.Iterator; 36 import java.util.ListIterator; 37 import java.util.NoSuchElementException; 38 39 import org.testng.annotations.Test; 40 41 import static org.testng.Assert.assertNotNull; 42 import static org.testng.Assert.assertTrue; 43 import static org.testng.Assert.fail; 44 45 // Fixed size list containing two elements 46 47 class MyList extends AbstractList<String> { 48 49 private static final int SIZE = 2; 50 get(int i)51 public String get(int i) { 52 if (i >= 0 && i < SIZE) { 53 return "x"; 54 } else { 55 throw new IndexOutOfBoundsException(i); 56 } 57 } 58 size()59 public int size() { 60 return SIZE; 61 } 62 } 63 64 @Test 65 public class CheckForIndexOutOfBoundsException { 66 67 List<String> list = new MyList(); 68 69 70 @Test checkIteratorNext()71 public void checkIteratorNext() { 72 var iterator = list.iterator(); // position at start 73 try { 74 for (int i = 0; i <= list.size(); i++) { 75 iterator.next(); 76 } 77 fail("Failing checkIteratorNext() - NoSuchElementException should have been thrown"); 78 } catch (NoSuchElementException e) { 79 checkAssertOnException(e); 80 } 81 } 82 83 @Test checkListIteratorNext()84 public void checkListIteratorNext() { 85 var iterator = list.listIterator(list.size()); // position at end 86 try { 87 iterator.next(); 88 fail("Failing checkListIteratorNext() - NoSuchElementException should have been thrown"); 89 } catch (NoSuchElementException e) { 90 checkAssertOnException(e); 91 } 92 } 93 94 @Test checkListIteratorPrevious()95 public void checkListIteratorPrevious() { 96 var iterator = list.listIterator(0); // position at start 97 try { 98 iterator.previous(); 99 fail("Failing checkListIteratorPrevious() - NoSuchElementException should have been thrown"); 100 } catch (NoSuchElementException e) { 101 checkAssertOnException(e); 102 } 103 } 104 checkAssertOnException(NoSuchElementException e)105 private void checkAssertOnException(NoSuchElementException e) { 106 var cause = e.getCause(); 107 assertNotNull(cause, "Exception.getCause()"); 108 assertTrue(cause instanceof IndexOutOfBoundsException, "Exception.getCause() should be an " + 109 "IndexOutOfBoundsException"); 110 var msg = e.getMessage(); 111 assertNotNull(msg, "Exception.getMessage()"); 112 assertTrue(msg.contains("IndexOutOfBoundsException"), "Exception.getMessage() should " + 113 "contain the string 'IndexOutOfBoundsException'"); 114 } 115 } 116 117