1 /*
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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
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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
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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22  */
23 
24 /*
25  * @test
26  * @bug 4218776
27  * @summary Test loading of properties files with blank lines
28  */
29 
30 package test.java.util.Properties;
31 
32 import java.io.File;
33 import java.io.FileInputStream;
34 import java.io.FileOutputStream;
35 import java.io.IOException;
36 import java.io.InputStream;
37 import java.util.Properties;
38 
39 /**
40  * This class tests to see if a properties object correctly handles blank
41  * lines in a properties file
42  */
43 public class BlankLines {
main(String []args)44     public static void main(String []args)
45     {
46         try {
47             // create test file
48             // Android-changed: create temp file.
49             // File file = new File("test.properties");
50             File file = File.createTempFile("test", "properties");
51 
52             // write a single space to the test file
53             FileOutputStream fos = new FileOutputStream(file);
54             fos.write(' ');
55             fos.close();
56 
57             // test empty properties
58             Properties prop1 = new Properties();
59 
60             // now load the file we just created, into a
61             // properties object.
62             // the properties object should have no elements,
63             // but due to a bug, it has an empty key/value.
64             // key = "", value = ""
65             Properties prop2 = new Properties();
66             InputStream is = new FileInputStream(file);
67             try {
68                 prop2.load(is);
69             } finally {
70                 is.close();
71             }
72             if (!prop1.equals(prop2))
73                 throw new RuntimeException("Incorrect properties loading.");
74 
75             // cleanup
76             file.delete();
77         }
78         catch(IOException e) {}
79     }
80 }
81