util/Hashtable/IllegalLoadFactor.java

/*
 * Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/* @test
   @bug 4093817 4189594
   @summary Test for an illegalargumentexception on loadFactor
*/

import java.util.*;

/**
 * This class tests to see if creating a hash table with an
 * illegal value of loadFactor results in an IllegalArgumentException
 */
public class IllegalLoadFactor {

      public static void main(String argv[]) throws Exception {
          boolean testSucceeded = false;
          try {
              // this should generate an IllegalArgumentException
              Hashtable bad1 = new Hashtable(100, -3);
          }
          catch (IllegalArgumentException e1) {
              testSucceeded = true;
          }
          if (!testSucceeded)
              throw new Exception("Hashtable, negative load factor");

          testSucceeded = false;
          try {
              // this should generate an IllegalArgumentException
              Hashtable bad1 = new Hashtable(100, Float.NaN);
          }
          catch (IllegalArgumentException e1) {
              testSucceeded = true;
          }
          if (!testSucceeded)
              throw new Exception("Hashtable, NaN load factor");

          testSucceeded = false;
          try {
              // this should generate an IllegalArgumentException
              HashMap bad1 = new HashMap(100, -3);
          }
          catch (IllegalArgumentException e1) {
              testSucceeded = true;
          }
          if (!testSucceeded)
              throw new Exception("HashMap, negative load factor");

          testSucceeded = false;
          try {
              // this should generate an IllegalArgumentException
              HashMap bad1 = new HashMap(100, Float.NaN);
          }
          catch (IllegalArgumentException e1) {
              testSucceeded = true;
          }
          if (!testSucceeded)
              throw new Exception("HashMap, NaN load factor");


          testSucceeded = false;
          try {
              // this should generate an IllegalArgumentException
              HashSet bad1 = new HashSet(100, -3);
          }
          catch (IllegalArgumentException e1) {
              testSucceeded = true;
          }
          if (!testSucceeded)
              throw new Exception("HashSet, negative load factor");

          testSucceeded = false;
          try {
              // this should generate an IllegalArgumentException
              HashSet bad1 = new HashSet(100, Float.NaN);
          }
          catch (IllegalArgumentException e1) {
              testSucceeded = true;
          }
          if (!testSucceeded)
              throw new Exception("HashSet, NaN load factor");

          testSucceeded = false;
          try {
              // this should generate an IllegalArgumentException
              WeakHashMap bad1 = new WeakHashMap(100, -3);
          }
          catch (IllegalArgumentException e1) {
              testSucceeded = true;
          }
          if (!testSucceeded)
              throw new Exception("WeakHashMap, negative load factor");

          testSucceeded = false;
          try {
              // this should generate an IllegalArgumentException
              WeakHashMap bad1 = new WeakHashMap(100, Float.NaN);
          }
          catch (IllegalArgumentException e1) {
              testSucceeded = true;
          }
          if (!testSucceeded)
              throw new Exception("WeakHashMap, NaN load factor");

          // Make sure that legal creates don't throw exceptions
          Map goodMap = new Hashtable(100, .69f);
          goodMap = new HashMap(100, .69f);
          Set goodSet = new HashSet(100, .69f);
          goodMap = new WeakHashMap(100, .69f);
     }

}
Revision:	1.5
Committed:	Sun Oct 11 00:58:42 2015 UTC (8 years, 7 months ago) by jsr166
Branch:	MAIN
Changes since 1.4:	+0 -2 lines
Log Message:	whitespace
#	User	Rev	Content
1	jsr166	1.1	/*
2	jsr166	1.3	* Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved.
3	jsr166	1.1	* 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	jsr166	1.3	* 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	jsr166	1.1	*/
23
24			/* @test
25			@bug 4093817 4189594
26			@summary Test for an illegalargumentexception on loadFactor
27			*/
28
29			import java.util.*;
30
31			/**
32			* This class tests to see if creating a hash table with an
33			* illegal value of loadFactor results in an IllegalArgumentException
34			*/
35			public class IllegalLoadFactor {
36
37			public static void main(String argv[]) throws Exception {
38			boolean testSucceeded = false;
39	jsr166	1.4	try {
40	jsr166	1.1	// this should generate an IllegalArgumentException
41			Hashtable bad1 = new Hashtable(100, -3);
42			}
43			catch (IllegalArgumentException e1) {
44			testSucceeded = true;
45			}
46	jsr166	1.2	if (!testSucceeded)
47	jsr166	1.1	throw new Exception("Hashtable, negative load factor");
48
49			testSucceeded = false;
50	jsr166	1.4	try {
51	jsr166	1.1	// this should generate an IllegalArgumentException
52			Hashtable bad1 = new Hashtable(100, Float.NaN);
53			}
54			catch (IllegalArgumentException e1) {
55			testSucceeded = true;
56			}
57	jsr166	1.2	if (!testSucceeded)
58	jsr166	1.1	throw new Exception("Hashtable, NaN load factor");
59
60			testSucceeded = false;
61	jsr166	1.4	try {
62	jsr166	1.1	// this should generate an IllegalArgumentException
63			HashMap bad1 = new HashMap(100, -3);
64			}
65			catch (IllegalArgumentException e1) {
66			testSucceeded = true;
67			}
68	jsr166	1.2	if (!testSucceeded)
69	jsr166	1.1	throw new Exception("HashMap, negative load factor");
70
71			testSucceeded = false;
72	jsr166	1.4	try {
73	jsr166	1.1	// this should generate an IllegalArgumentException
74			HashMap bad1 = new HashMap(100, Float.NaN);
75			}
76			catch (IllegalArgumentException e1) {
77			testSucceeded = true;
78			}
79	jsr166	1.2	if (!testSucceeded)
80	jsr166	1.1	throw new Exception("HashMap, NaN load factor");
81
82
83			testSucceeded = false;
84	jsr166	1.4	try {
85	jsr166	1.1	// this should generate an IllegalArgumentException
86			HashSet bad1 = new HashSet(100, -3);
87			}
88			catch (IllegalArgumentException e1) {
89			testSucceeded = true;
90			}
91	jsr166	1.2	if (!testSucceeded)
92	jsr166	1.1	throw new Exception("HashSet, negative load factor");
93
94			testSucceeded = false;
95	jsr166	1.4	try {
96	jsr166	1.1	// this should generate an IllegalArgumentException
97			HashSet bad1 = new HashSet(100, Float.NaN);
98			}
99			catch (IllegalArgumentException e1) {
100			testSucceeded = true;
101			}
102	jsr166	1.2	if (!testSucceeded)
103	jsr166	1.1	throw new Exception("HashSet, NaN load factor");
104
105			testSucceeded = false;
106	jsr166	1.4	try {
107	jsr166	1.1	// this should generate an IllegalArgumentException
108			WeakHashMap bad1 = new WeakHashMap(100, -3);
109			}
110			catch (IllegalArgumentException e1) {
111			testSucceeded = true;
112			}
113	jsr166	1.2	if (!testSucceeded)
114	jsr166	1.1	throw new Exception("WeakHashMap, negative load factor");
115
116			testSucceeded = false;
117	jsr166	1.4	try {
118	jsr166	1.1	// this should generate an IllegalArgumentException
119			WeakHashMap bad1 = new WeakHashMap(100, Float.NaN);
120			}
121			catch (IllegalArgumentException e1) {
122			testSucceeded = true;
123			}
124	jsr166	1.2	if (!testSucceeded)
125	jsr166	1.1	throw new Exception("WeakHashMap, NaN load factor");
126
127			// Make sure that legal creates don't throw exceptions
128			Map goodMap = new Hashtable(100, .69f);
129			goodMap = new HashMap(100, .69f);
130			Set goodSet = new HashSet(100, .69f);
131			goodMap = new WeakHashMap(100, .69f);
132			}
133
134			}