java future 并发简单实现

List<Future<>> futures = new ArrayList<>();
List<T> t= new ArrayList<>();
try {
    List<> tmp= new ArrayList<....>
    for (int i = 0; i < tmp.size(); i++){
        futures.add(excutefunc());
    }
}catch (Exception e){
    logger.error("Error" + e.getMessage());
}
for(Future<CMCBuild> future : futures) {
    try {
        while (true) {
            if (future.isDone() && !future.isCancelled()) {
                T response1 = future.get();
                t.add(response1);
                break;
            } else {
                Thread.sleep(10);
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

@Async
excutefunc(){
}