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javaapache-commons

Why is this code dying on Windows?

I'm trying to port some code from Linux to Windows. I really don't know much about Windows, and so I'm kind of flying blind. The code in question attempts to delete some directories using org.apache.commons.io.FileUtils

  // If the mergesegs worked, delete the segment dirs
    for (File file : segments.listFiles())
    {
        if (!file.equals(mergedSegFile))
        {
            LOG.debug("deleting segment dir " + file);
            FileUtils.deleteDirectory(file);
        }
    }

segments is a File, as is mergedSegFile. It dies with an IOException "Unable to delete file: c:\www\tomcat\crawls\test\TestingCode.site\crawldir\segments\20101128194700\parse_test\part-00000\data".

These files were created by a previous run of the same program (which does some Nutch crawling). Doing an ls -l under cygwin shows the user and group are correct, but the perms are 000.

Further info:

  • dir doesn't tell me anything about permissions.
  • I can remove the directory with del on a cmd.exe window or rm -rf on a cygwin bash window.
  • The files in question, and the directory they are in, were created earlier in the same run of the same program.
  • The computer is running Windows 7, so I assume that means it's NTFS.
Solution

  • Plenty of possibilities here. The path itself doesn't look bad. Your best bet is to try to delete that directory manually from a command prompt and see what error you get.

    Things to check:

    • Is the directory, or any of its contents, in use by an application?
    • Is the directory, or any of its files, read-only? (Check with dir, not ls).
    • Does the directory, or any of its files, have special permissions, and you are not an administrator?
    • Btw, this is NTFS, I presume?