Java 8 Optional. Why of and ofNullable?

Question

I have a question regarding Java 8\'s Optional, the purpose of which is to tackle NullPointerException exceptions.

The question is, what is the reason for h

Answer 1

• Optional.ofNullable is a wrapper around existing APIs that can return null. You would call it as a consumer of an API.
• Optional.of/Optional.empty is for new code written with Optional in mind. You would return an Optional created with of/empty as a provider of an API.