DataflowActivity extends AbstractAsynchronousActivity<JsonNode> implements NestedDataflow { @Override public JsonNode getConfiguration() { return json; }  @Override void configure(JsonNode json); @Override JsonNode getConfiguration(); @Override void executeAsynch(final Map<String, T2Reference> data,
			final AsynchronousActivityCallback callback); Dataflow getNestedDataflow(); @Override void setNestedDataflow(Dataflow dataflow); static final String URI; }
@Test public void testGetConfiguration() { assertNull("freshly created activity should not contain configuration", activity.getConfiguration()); }