File.getCanonicalPath() throws IOException when invoked with "nul" (win)

###@###.### 2003-05-05

J2SE Version (please include all output from java -version flag):

J:\borsotti\jtest>java -version
  java version "1.4.1_01"
  Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
  Java HotSpot(TM) Client VM (build 1.4.1_01-b01, mixed mode)

  and

  java version "1.4.2-rc"
  Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-rc-b20)
  Java HotSpot(TM) Client VM (build 1.4.2-rc-b20, mixed mode)

Does this problem occur on J2SE 1.3, 1.4 or 1.4.1? Yes / No (pick one)
 Yes on 1.4.1
 No pm 1.4 and 1.3.1

Operating System Configuration Information (be specific):
 NT service pack 5

Hardware Configuration Information (be specific):
 Compaq DeskPro

Bug Description:
  java.io.IOException exception throws on getCanonicalPath method when
  a file "nul" is created on Window system.

Steps to Reproduce (be specific):

 - Compile and run it.
 - A File for "nul" is created (i.e. for the name that is used
   in Windows to denote the null device).
 - A writer is created, successfully.
 - The getCanonicalPath() methid is invoked, which throws an exception:

  >java Fnull
Exception in thread "main" java.io.IOException: No such file or
directory
        at java.io.WinNTFileSystem.canonicalize(Native Method)
        at java.io.File.getCanonicalPath(File.java:513)
        at Fnull.main(Fnull.java:6)

  This should not occur because a file on which a Writer can be
  successfully created should also have a canonical name.

Test program (Fnull.java):
---------------------------
  import java.io.*;
  public class Fnull {
      public static void main(String[] args) throws IOException {
        File f = new File("nul");
        FileWriter out = new FileWriter(f);
        String s = f.getCanonicalPath();
      }
   }