The last version of the JPN model contains some characteristicFaultSources whose ruptures are represented as griddedSurfaces. The error generated while creating this file is UnboundLocalError: node characteristicFaultSource: local variable 'geom' referenced before assignment
. This happens since here https://github.com/gem/oq-engine/blob/master/openquake/hazardlib/sourceconverter.py#L1477 the case of a griddedSurface
is not considered.