public EsriLayer(String name,URL dbf,URL shp,URL shx){
  this(name,dbf,shp,shx,DrawingAttributes.getDefaultClone());
}

public EsriLayer ( String name , URL dbf , URL shp , URL shx ) { this ( name , dbf , shp , shx , DrawingAttributes . getDefaultClone ( ) ) ; }
creates an esrilayer from a set of shape files
