Unclosed iterator in GeoSPARQL

[Holger Knublauch]

Hi,

I am starting to look into GeoSPARQL and run into an issue related to 
this line 135 in SpatialObjectGeometryLiteral:

    Node lat = graph.find(targetSpatialObject, 
SpatialExtension.GEO_LAT_NODE, null).next().getObject();

This is creating an Iterator in the find() and then just calls next() 
without checking whether the iterator is exhausted. However, a subject 
may have multiple values for that geo:lat property and then we end up 
with an unclosed iterator. This breaks our assumptions in that each Jena 
iterator must be either exhausted by reaching the end, or closed with 
.close().

Isn't this a bug?

Thanks
Holger