@BeforeClass
public static void setUpClass() throws Exception {
////needed to unbind because this is injected with META-INF/services - file
TcManager.getInstance().unbindWeightedTcProvider(new WeightedA());
TcManager.getInstance().bindWeightedTcProvider(new WeightedDummy());
TcManager.getInstance().createMGraph(new UriRef("http://example.org/graph/alreadyexists"));
TcManager.getInstance().createMGraph(new UriRef("http://example.org/read/graph"));
}