Java 8 method references: provide a Supplier capable of supplying a parameterized result

Question

I\'d like to use

java.util.Optional.orElseThrow()

with an Exception type that asks for a constructor parameter. Something like this:

Answer 1

optionalUsers.orElseThrow(() -> new UsernameNotFoundException("Username not found"));

Answer 2

Sure.

.orElseThrow(() -> new MyException(someArgument))

Answer 3

It appears that you can throw only RuntimeException from the method orElseThrow. Otherwise you will get an error message like MyException cannot be converted to java.lang.RuntimeException

Update:- This was an issue with an older version of JDK. I don't see this issue with the latest versions.