code: private String filename(final File aFile) {
  		try {
  			return aFile.getCanonicalPath();
  		} catch (IOException ex) {
  			recordException(ex);
  			return "UNKNOWN FILE";
  		}
  	}
docs: Retrieves the canonical path for a given file.
  
  @param aFile the file to get the canonical path for.
  @return the canonical path to the given file, or <code>"UNKNOWN FILE"</code> on error.