2013/01/25 06:59:10 WARNING (ElementSaver): 70013066.osm.pbf:   Way null (http://www.openstreetmap.org/browse/way/109710520) has short arc (2.39m) at http://www.openstreetmap.org/?mlat=40.23603&mlon=140.36133&zoom=17 - but it can't be removed because both ends of the arc are boundary nodes!