Windows nul drive test

DevNullTest.java

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

/*
* Author: Ashwin Jayaprakash / Date: Jul 20, 2010 / Time: 10:00:22 PM / Contact: http://www.ashwinjayaprakash.com
*/
public class DevNullTest {
    public static void main(String[] args) throws IOException {
        File f = new File("nul:");
        System.out.println(f + " write: " + f.canWrite() + ", read: " + f.canRead()
                + ", exec: " + f.canExecute() + ", length: " + f.length()
                + ", dirs: " + f.list() + ", mkdirs: " + f.mkdirs()
                + ", path: " + f.getAbsolutePath());

        System.out.println("----------");

        File f2 = new File("nul:test.log");
        FileOutputStream fos = new FileOutputStream(f2);
        for (int i = 0; i < 1024; i++) {
            fos.write(1);
        }
        fos.close();
        System.out.println(
                "Wrote to: " + f2 + " write: " + f2.canWrite() + ", read: " + f2.canRead()
                        + ", exec: " + f2.canExecute() + ", length: " + f2.length()
                        + ", dirs: " + f2.list() + ", mkdirs: " + f2.mkdirs()
                        + ", path: " + f2.getAbsolutePath());

        System.out.println("----------");

        File f3 = new File(f, "another.log");
        try {
            boolean b = f3.createNewFile();
            System.out.println(f3);
        }
        catch (IOException e) {
            System.err.println("createNewFile() failed on: " + f3);
            e.printStackTrace();
        }

        System.out.println("----------");

        File f4 = new File(f, "again.log");
        System.out.println(f4 + " write: " + f4.canWrite() + ", read: " + f4.canRead()
                + ", exec: " + f4.canExecute() + ", length: " + f4.length()
                + ", dirs: " + f4.list() + ", mkdirs: " + f4.mkdirs()
                + ", path: " + f4.getAbsolutePath());
    }
}

output.log

nul: write: true, read: true, exec: true, length: 0, dirs: null, mkdirs: true, path: D:\Dump\nul:
----------
Wrote to: nul:test.log write: true, read: true, exec: true, length: 0, dirs: null, mkdirs: true, path: D:\Dump\nul:test.log
----------
createNewFile() failed on: nul:\another.log
java.io.IOException: The filename, directory name, or volume label syntax is incorrect
	at java.io.WinNTFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:883)
	at com.athi.bala.test.DevNullTest.main(DevNullTest.java:36)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:110)
----------
nul:\again.log write: false, read: false, exec: false, length: 0, dirs: null, mkdirs: false, path: D:\Dump\nul:\again.log