private boolean listContainsFeature(List<Feature> featureList, Feature feature) {
   for (Feature listFeature : featureList) {
     if ((feature.getChr().equals(listFeature.getChr()))
         && (feature.getStart() == listFeature.getStart())
         && (feature.getEnd() == listFeature.getEnd())) {
       return true;
     }
   }
   return false;
 }