public List<ValueBox> addArgumentHotspots(String signature,int arg,List<ValueBox> sigSpots){
  logger.debug("For signature " + signature + " and arg "+ arg+ " got "+ sigSpots.size()+ " hotspots.");
  if (!sigSpots.isEmpty()) {
    addSignatureToHotspotMap(signature,new Hotspot(signature,arg,sigSpots));
    hotspots.addAll(sigSpots);
  }
  return sigSpots;
}

public List < ValueBox > addArgumentHotspots ( String signature , int arg , List < ValueBox > sigSpots ) { logger . debug ( "For signature " + signature + " and arg " + arg + " got " + sigSpots . size ( ) + " hotspots." ) ; if ( ! sigSpots . isEmpty ( ) ) { addSignatureToHotspotMap ( signature , new Hotspot ( signature , arg , sigSpots ) ) ; hotspots . addAll ( sigSpots ) ; } return sigSpots ; }
add a hotspot for matching calls .
