Phil,
http://jena.apache.org/documentation/io/index.html
The FileManager functionality is subsumed by RDFDataMgr - to give
application compatibility, the old class remains.
In fact, during full initialization, the global FileManger is replcaed
by an adapter from the old code to the new RIOT
I have successfully read a file into a model using the following code based
on the some of the documented examples.
String inputfile = "c://myfile.ttl";
// create an empty model
com.hp.hpl.jena.rdf.model.Model model=
com.hp.hpl.jena.rdf.model.ModelFactory.createDefaultModel();
java.io.InputStream