Github user afs commented on the issue:
https://github.com/apache/jena/pull/151
Problem encountered: the JDBC remote driver tests lock up. I have tracked
it down to `TestRemoteEndpointResultsWithGraphUris` run on its own (it locks up
in Eclipse as well) at 113 of the 121 tests.
`netstat` reports many connections in `TIME_WAIT` suggesting that we have
the problem with port use and/or failing to close connections.
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