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/* |
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* Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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/* @test |
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@bug 4093817 4189594 |
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@summary Test for an illegalargumentexception on loadFactor |
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*/ |
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|
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Hashtable; |
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import java.util.Map; |
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import java.util.Set; |
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import java.util.WeakHashMap; |
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|
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/** |
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* This class tests to see if creating a hash table with an |
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* illegal value of loadFactor results in an IllegalArgumentException |
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*/ |
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public class IllegalLoadFactor { |
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|
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public static void main(String[] args) throws Exception { |
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boolean testSucceeded = false; |
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try { |
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// this should generate an IllegalArgumentException |
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Hashtable bad1 = new Hashtable(100, -3); |
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} |
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catch (IllegalArgumentException e1) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("Hashtable, negative load factor"); |
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|
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testSucceeded = false; |
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try { |
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// this should generate an IllegalArgumentException |
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Hashtable bad1 = new Hashtable(100, Float.NaN); |
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} |
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catch (IllegalArgumentException e1) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("Hashtable, NaN load factor"); |
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|
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testSucceeded = false; |
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try { |
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// this should generate an IllegalArgumentException |
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HashMap bad1 = new HashMap(100, -3); |
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} |
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catch (IllegalArgumentException e1) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("HashMap, negative load factor"); |
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|
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testSucceeded = false; |
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try { |
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// this should generate an IllegalArgumentException |
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HashMap bad1 = new HashMap(100, Float.NaN); |
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} |
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catch (IllegalArgumentException e1) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("HashMap, NaN load factor"); |
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|
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|
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testSucceeded = false; |
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try { |
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// this should generate an IllegalArgumentException |
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HashSet bad1 = new HashSet(100, -3); |
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} |
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catch (IllegalArgumentException e1) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("HashSet, negative load factor"); |
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|
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testSucceeded = false; |
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try { |
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// this should generate an IllegalArgumentException |
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HashSet bad1 = new HashSet(100, Float.NaN); |
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} |
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catch (IllegalArgumentException e1) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("HashSet, NaN load factor"); |
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|
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testSucceeded = false; |
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try { |
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// this should generate an IllegalArgumentException |
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WeakHashMap bad1 = new WeakHashMap(100, -3); |
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} |
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catch (IllegalArgumentException e1) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("WeakHashMap, negative load factor"); |
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|
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testSucceeded = false; |
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try { |
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// this should generate an IllegalArgumentException |
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WeakHashMap bad1 = new WeakHashMap(100, Float.NaN); |
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} |
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catch (IllegalArgumentException e1) { |
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testSucceeded = true; |
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} |
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if (!testSucceeded) |
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throw new Exception("WeakHashMap, NaN load factor"); |
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|
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// Make sure that legal creates don't throw exceptions |
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Map goodMap = new Hashtable(100, .69f); |
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goodMap = new HashMap(100, .69f); |
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Set goodSet = new HashSet(100, .69f); |
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goodMap = new WeakHashMap(100, .69f); |
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} |
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} |
