1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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  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).
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  23 
  24 /* @test
  25    @bug 4858457
  26    @summary Check getCanonicalPath's treatment of reserved names on Windows
  27    @author Dan Xu
  28  */
  29 
  30 import java.io.File;
  31 import java.io.IOException;
  32 
  33 public class ReservedName {
  34     private final static String[] RESERVED_NAMES = {"CON", "PRN", "AUX", "NUL",
  35             "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8",
  36             "COM9", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7",
  37             "LPT8", "LPT9"};
  38 
  39     private final static String EXT = ".TXT";
  40 
  41     public static void main(String[] args) throws IOException {
  42         if (!System.getProperty("os.name").startsWith("Windows")) {
  43             return;
  44         }
  45 
  46         for (String name : RESERVED_NAMES) {
  47             String nameWithExt = name + EXT;
  48             test(name);
  49             test(name.toLowerCase());
  50             test(nameWithExt);
  51             test(nameWithExt.toLowerCase());
  52         }
  53     }
  54 
  55     private static void test(String name) throws IOException {
  56         File f = new File(name);
  57         System.out.println(name + " canonical path:" + f.getCanonicalPath());
  58     }
  59 }