code: @Override
  	public String getExtension() {
  		// some strings you just can't help
  		if(this.path == null || this.path.isEmpty()) {
  			return "";
  		}
  		// chop string
  		String ext = this.path.substring(this.path.lastIndexOf('.')+1);
  		// return
  		return ext;
  	}
docs: {@inheritDoc}