}
@Test(expected = IllegalArgumentException.class)
public void testRollRollConflict() throws IOException, FlumeSpecException,
InterruptedException {
EventSink snk = new CompositeSink(new Context(),
"{value(\"rolltag\",\"foofoo\") => roll(10000) {null} } ");
Event e = new EventImpl("foo".getBytes());
snk.open();
snk.append(e); // should bork.
}