1 /* 2 * Copyright (c) 1999, 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 4251519 4251520 27 * @summary indexOf and lastIndex of used to let you look outside the 28 * valid range in the backing array 29 */ 30 31 import java.util.SortedMap; 32 import java.util.SortedSet; 33 import java.util.TreeMap; 34 import java.util.TreeSet; 35 36 public class HeadTailTypeError { main(String[] args)37 public static void main(String[] args) throws Exception { 38 try { 39 SortedMap m = new TreeMap(); 40 m.headMap(new Object()); 41 throw new Exception("headMap, natural ordering"); 42 } catch (ClassCastException e) { 43 } 44 45 try { 46 SortedMap m = new TreeMap(); 47 m.tailMap(new Object()); 48 throw new Exception("tailMap, natural ordering"); 49 } catch (ClassCastException e) { 50 } 51 52 try { 53 SortedMap m = new TreeMap(String.CASE_INSENSITIVE_ORDER); 54 m.headMap(new Integer(0)); 55 throw new Exception("headMap, explicit comparator"); 56 } catch (ClassCastException e) { 57 } 58 59 try { 60 SortedMap m = new TreeMap(String.CASE_INSENSITIVE_ORDER); 61 m.tailMap(new Integer(0)); 62 throw new Exception("tailMap, explicit comparator"); 63 } catch (ClassCastException e) { 64 } 65 66 try { 67 SortedSet m = new TreeSet(); 68 m.headSet(new Object()); 69 throw new Exception("headSet, natural ordering"); 70 } catch (ClassCastException e) { 71 } 72 73 try { 74 SortedSet m = new TreeSet(); 75 m.tailSet(new Object()); 76 throw new Exception("tailSet, natural ordering"); 77 } catch (ClassCastException e) { 78 } 79 80 try { 81 SortedSet m = new TreeSet(String.CASE_INSENSITIVE_ORDER); 82 m.headSet(new Integer(0)); 83 throw new Exception("headSet, explicit comparator"); 84 } catch (ClassCastException e) { 85 } 86 87 try { 88 SortedSet m = new TreeSet(String.CASE_INSENSITIVE_ORDER); 89 m.tailSet(new Integer(0)); 90 throw new Exception("tailSet, explicit comparator"); 91 } catch (ClassCastException e) { 92 } 93 94 try { 95 SortedMap m = new TreeMap(); 96 m.headMap(null); 97 throw new Exception("(null endpoint)headMap, natural ordering"); 98 } catch (NullPointerException e) { 99 } 100 101 try { 102 SortedMap m = new TreeMap(); 103 m.tailMap(null); 104 throw new Exception("(null endpoint)tailMap, natural ordering"); 105 } catch (NullPointerException e) { 106 } 107 108 109 try { 110 SortedMap m = new TreeMap(String.CASE_INSENSITIVE_ORDER); 111 m.headMap(null); 112 throw new Exception("(null endpoint)headMap, explicit comparator"); 113 } catch (NullPointerException e) { 114 } 115 116 try { 117 SortedMap m = new TreeMap(String.CASE_INSENSITIVE_ORDER); 118 m.tailMap(null); 119 throw new Exception("(null endpoint)tailMap, explicit comparator"); 120 } catch (NullPointerException e) { 121 } 122 123 try { 124 SortedSet m = new TreeSet(); 125 m.headSet(null); 126 throw new Exception("(null endpoint)headSet, natural ordering"); 127 } catch (NullPointerException e) { 128 } 129 130 try { 131 SortedSet m = new TreeSet(); 132 m.tailSet(null); 133 throw new Exception("(null endpoint)tailSet, natural ordering"); 134 } catch (NullPointerException e) { 135 } 136 137 try { 138 SortedSet m = new TreeSet(String.CASE_INSENSITIVE_ORDER); 139 m.headSet(null); 140 throw new Exception("(null endpoint)headSet, explicit comparator"); 141 } catch (NullPointerException e) { 142 } 143 144 try { 145 SortedSet m = new TreeSet(String.CASE_INSENSITIVE_ORDER); 146 m.tailSet(null); 147 throw new Exception("(null endpoint)tailSet, explicit comparator"); 148 } catch (NullPointerException e) { 149 } 150 151 // These should not fail 152 SortedMap m = new TreeMap(); 153 m.headMap(new Integer(0)); 154 m.tailMap(new Integer(0)); 155 m = new TreeMap(String.CASE_INSENSITIVE_ORDER); 156 m.headMap("llama"); 157 m.tailMap("llama"); 158 159 SortedSet s = new TreeSet(); 160 s.headSet(new Integer(0)); 161 s.tailSet(new Integer(0)); 162 s = new TreeSet(String.CASE_INSENSITIVE_ORDER); 163 s.headSet("drama"); 164 s.tailSet("drama"); 165 } 166 } 167