code: private boolean isValid(final String fileType) {
  		boolean result = false;
  		if (fileType != null && fileType.length() > 1) { // the shortest I can think of would be something like ".h"
  			if (fileType.startsWith(".")) { // assume it's a file extension
  				result = true;
  			} else if (fileType.length() > 2 && fileType.indexOf('/') > 0) { // some imaginary mimetype like "a/*" would be at least 3 characters
  				result = true;
  			}
  		}
  		return result;
  	}
docs: Check that the file type SEEMS to be legit.
  
  @param fileType The file type to check
  @return true if the file type is valid.