{
    "pointName":"any location",
    "geom":"POINT(-71.060316 48.432044), 3857"
}

public static Geometry wktToGeometry(String wellKnownText)
              throws ParseException {

                return new WKTReader().read(wellKnownText);
            }

org.postgresql.util.PSQLException: ERROR: Geometry SRID (0) does not match column SRID (3857)