I like to learn about Java's features by taking a look at the corresponding JEP. Is there a JEP for Java's Optional? I wasn't able to find anything searching this list for Java 8 features.
Is there a JEP for Optional?
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No, there is no separate JEP for
Optional. The history ofOptionalis the following.The Java Specification Request 335 dealt with Lambda Expressions for the Java™ Programming Language. Its goal was:
It was this context which lead to the inclusion of
Optionalin Java 8.Members of the expert group for JSR-335 and strongly involved in the multiple discussions about Optional were people like Brian Goetz, Doug Lea and Rémi Forax. Chiming in were known experts like Joshua Bloch, Tim Peierls and others.
The archive of the lambda-libs-spec-experts mailing list contains opinion exchange about Optional.
So,
Optionalwere added as a result of JSR 335. This information was taken from here. There you can find details.