An example executing a query using a background thread... and cancelling it if it didn't finish after 3 seconds.

NB: the future.cancel(timeout) can also be used.

Query<Order> query = Ebean.find(Order.class);

// execute the query using a background thread and 
// return immediately with a FutureList object
FutureList<Order> futureList = query.findFutureList();

// do something else ... but we will just sleep
Thread.sleep(3000);
System.out.println("end of sleep");
		
if (!futureList.isDone()){
    // cancel the query
    futureList.cancel(true);
}

This code to support query.cancel() is now in head.