When validating or printing a MIB file with MibbleValidator or MibblePrinter the file directory is added to the MibLoader path. However, when the file specified on the command-line does not contain any path portion (like "CISCO-TC.my") the getParentFile() method in the File class does not seem to return a parent directory. Hence, referencing other files in the current directory (via import in the MIB file) fails.

This can probably be rectified either in the MibLoader by adding "new File(".")" when null is passed as an argument. Otherwise the MibbleValidator, MibblePrinter and the documentation must be fixed to handle this case properly.