code: public GeometryIndex getLinearRingIndex(Geometry geometry, Coordinate location) {
  		return fromDelegate(GeometryService.getLinearRingIndex(geometry, location));
  	}
docs: Get the index of the (smallest) linear ring of the geometry that contains this coordinate.
  
  @param geometry
  @param c
  @return the index (empty array indicates no containment)
  @since 2.1.0