#1 exception after adding 110 documents

[wimw]

When you open an IndexWriter, add your document to the GeoLucene index and finally close the IndexWriter, it appears that GeoLucene always generates an exception after adding 110 documents. Afterwards the index is corrupted.
In the application I intend to write, it is absolutely necessary that I add the points one at a time.
The code generating this exception can be found in the attached file.

[wimw]