Hi, as a result of previous discussions here is th new patch. http://gis.19327.n5.nabble.com/file/n5471749/verify_boundary_v3.patch verify_boundary_v3.patch Changes: Verify if rounding errors change the direction of a way (clockwise/counterclockwise order), if that happens, change the order so that Way.clockwise() returns the wanted result. The patch introduces a new method Java2DConverter.verifiedAreaToShapes() instead of changing the existing Java2DConverter.areaToShapes(area) I did this because Java2DConverter.areaToShapes(area) is called in other places and I wanted to avoid side effects. Maybe someone who knows the sources in PolygonSplitterBase.java and PolygonClipper.java can look at this and see if they benefit also from the verified routine? Gerd -- View this message in context: http://gis.19327.n5.nabble.com/PATCH-Again-NullPointerException-tp5471749p54... Sent from the Mkgmap Development mailing list archive at Nabble.com.