public void changeSessionId() {
HttpServerExchange exchange = new HttpServerExchange(null);
SessionConfig config = mock(SessionConfig.class);
SessionManager<LocalSessionContext, Batch> manager = mock(SessionManager.class);
Batcher<Batch> batcher = mock(Batcher.class);
BatchContext context = mock(BatchContext.class);
Session<LocalSessionContext> session = mock(Session.class);
SessionAttributes oldAttributes = mock(SessionAttributes.class);
SessionAttributes newAttributes = mock(SessionAttributes.class);
SessionMetaData oldMetaData = mock(SessionMetaData.class);
SessionMetaData newMetaData = mock(SessionMetaData.class);