java 8 lambda ambiguous runnable和callback

Question

Executors.newFixedThreadPool(3).submit(() -> {doSmth();});

"模糊方法调用.在ExecutorService中提交(Callable)并在ExecutorService匹配中提交(Runnable)."

怎么解决？我知道我可以使用匿名类,但我想使用Function.

Answer 1

Executors.newFixedThreadPool(3).submit(() -> 1); //Callable
Executors.newFixedThreadPool(3).submit(() -> {doSmth();}); //Runnable