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:	1.4
Committed:	Sat Oct 16 16:00:28 2010 UTC (13 years, 7 months ago) by jsr166
Branch:	MAIN
CVS Tags:	release-1_7_0
Changes since 1.3:	+8 -8 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
30
31			import java.util.*;
32
33			/**
34			* This class tests to see if creating a hash table with an
35			* illegal value of loadFactor results in an IllegalArgumentException
36			*/
37			public class IllegalLoadFactor {
38
39			public static void main(String argv[]) throws Exception {
40			boolean testSucceeded = false;
41	jsr166	1.4	try {
42	jsr166	1.1	// this should generate an IllegalArgumentException
43			Hashtable bad1 = new Hashtable(100, -3);
44			}
45			catch (IllegalArgumentException e1) {
46			testSucceeded = true;
47			}
48	jsr166	1.2	if (!testSucceeded)
49	jsr166	1.1	throw new Exception("Hashtable, negative load factor");
50
51			testSucceeded = false;
52	jsr166	1.4	try {
53	jsr166	1.1	// this should generate an IllegalArgumentException
54			Hashtable bad1 = new Hashtable(100, Float.NaN);
55			}
56			catch (IllegalArgumentException e1) {
57			testSucceeded = true;
58			}
59	jsr166	1.2	if (!testSucceeded)
60	jsr166	1.1	throw new Exception("Hashtable, NaN load factor");
61
62			testSucceeded = false;
63	jsr166	1.4	try {
64	jsr166	1.1	// this should generate an IllegalArgumentException
65			HashMap bad1 = new HashMap(100, -3);
66			}
67			catch (IllegalArgumentException e1) {
68			testSucceeded = true;
69			}
70	jsr166	1.2	if (!testSucceeded)
71	jsr166	1.1	throw new Exception("HashMap, negative load factor");
72
73			testSucceeded = false;
74	jsr166	1.4	try {
75	jsr166	1.1	// this should generate an IllegalArgumentException
76			HashMap bad1 = new HashMap(100, Float.NaN);
77			}
78			catch (IllegalArgumentException e1) {
79			testSucceeded = true;
80			}
81	jsr166	1.2	if (!testSucceeded)
82	jsr166	1.1	throw new Exception("HashMap, NaN load factor");
83
84
85			testSucceeded = false;
86	jsr166	1.4	try {
87	jsr166	1.1	// this should generate an IllegalArgumentException
88			HashSet bad1 = new HashSet(100, -3);
89			}
90			catch (IllegalArgumentException e1) {
91			testSucceeded = true;
92			}
93	jsr166	1.2	if (!testSucceeded)
94	jsr166	1.1	throw new Exception("HashSet, negative load factor");
95
96			testSucceeded = false;
97	jsr166	1.4	try {
98	jsr166	1.1	// this should generate an IllegalArgumentException
99			HashSet bad1 = new HashSet(100, Float.NaN);
100			}
101			catch (IllegalArgumentException e1) {
102			testSucceeded = true;
103			}
104	jsr166	1.2	if (!testSucceeded)
105	jsr166	1.1	throw new Exception("HashSet, NaN load factor");
106
107			testSucceeded = false;
108	jsr166	1.4	try {
109	jsr166	1.1	// this should generate an IllegalArgumentException
110			WeakHashMap bad1 = new WeakHashMap(100, -3);
111			}
112			catch (IllegalArgumentException e1) {
113			testSucceeded = true;
114			}
115	jsr166	1.2	if (!testSucceeded)
116	jsr166	1.1	throw new Exception("WeakHashMap, negative load factor");
117
118			testSucceeded = false;
119	jsr166	1.4	try {
120	jsr166	1.1	// this should generate an IllegalArgumentException
121			WeakHashMap bad1 = new WeakHashMap(100, Float.NaN);
122			}
123			catch (IllegalArgumentException e1) {
124			testSucceeded = true;
125			}
126	jsr166	1.2	if (!testSucceeded)
127	jsr166	1.1	throw new Exception("WeakHashMap, NaN load factor");
128
129			// Make sure that legal creates don't throw exceptions
130			Map goodMap = new Hashtable(100, .69f);
131			goodMap = new HashMap(100, .69f);
132			Set goodSet = new HashSet(100, .69f);
133			goodMap = new WeakHashMap(100, .69f);
134			}
135
136			}