code: public int compare(final FeatureFile ff1, final FeatureFile ff2) {
  		if (ff1 != null && ff2 != null) {
  			return ff1.getName().compareTo(ff2.getName());
  		} else {
  			return -1;
  		}
  	}
docs: /*
  (non-Javadoc)
  
  @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)