Major Description
When creating the HttpQuery object the com.hp.hpl.jena.sparql.engine.http.Service class does not set any timeout values. HttpQuery will hang if the remote endpoint does not respond.
I think the solution is to allow the context to specify the timeout values (and perhaps other setter values on HttpQuery). The context should have default values and provide a mechanism to override the defaults based on the URL. Similar to the way query parameters are configured after JENA-195.
