Bombs out on one of the included test files

[Tokov]

For the "\src\main\resources\structures\test*sample_data.xml*" file, what's the right way to convert it to RDF without getting an error? I'm running the code directly via a Junit call. The parse function always returns an error saying that the "DataSet" tag is not valid.

This could be a really useful utility if I could get it to work with my own files that share a similar structure to "sample_data.xml".

In addition, some of the classes used are no longer compatible with latest version of SDMXSOURCE (1.5.x).