IAnalysisEngine twitterEngine;
@Override
protected void setUp() throws Exception {
javaEngine = new JavaFuturesAnalysisEngine();
guavaEngine = new GuavaListenableFuturesAnalysisEngine();
gparsEngine = new GParsDataflowAnalysisEngine();
akkaEngine = new AkkaFuturesAnalysisEngine();
twitterEngine = new TwitterFuturesAnalysisEngine();
}