Java – completable future has been completed with exceptions

CompletableFuture. Completedfuture() returns the completedfuture that has been completed with the given value

How do we build a completable future that has been abnormally completed?

I hope to throw an exception in the future instead of returning a value

Solution

I just found this:

CompletableFuture<T> future = new CompletableFuture<>();
future.completeExceptionally(t);

There is no static factory method, but the default constructor seems to do the job