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Java > Open Source Codes > org > apache > tools > ant > util > ReferencesTest


1 /*
2  * Copyright 2002,2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17
18 package org.apache.tools.ant.util;
19
20 import junit.framework.TestCase;
21
22
23 /**
24  * this test just makes sure that we really do create weak references
25  * on java1.2+, and is written to not import the WeakishReference12 class
26  * because then we'd have to make the class conditional on java1.2+.
27  */
28 public class ReferencesTest extends TestCase{
29
30     public ReferencesTest(String JavaDoc s) {
31         super(s);
32     }
33
34     /**
35      * look at the type of a reference we have created
36      */
37     public static void testReferencesAreSoft() {
38         boolean isJava11=JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_1_1);
39         WeakishReference reference = WeakishReference.createReference(new Object JavaDoc());
40         if ((reference.getClass().getName().indexOf("HardReference") > 0 )
41             && !isJava11) {
42             fail("We should be creating soft references in this version of Java");
43         }
44     }
45
46 }
47
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