Java 17 NoSuchElementException When Using Stream.collect() with Optional
I'm encountering a `NoSuchElementException` when trying to collect the results of a stream operation into an `Optional` in Java 17. I have a list of user objects, and I want to find the first user that meets a specific condition and wrap it in an `Optional`. Here's the code snippet I've written: ```java import java.util.List; import java.util.Optional; public class User { private String name; private int age; public User(String name, int age) { this.name = name; this.age = age; } public String getName() { return name; } public int getAge() { return age; } } public class UserService { private List<User> users; public UserService(List<User> users) { this.users = users; } public Optional<User> findFirstAdult() { return users.stream() .filter(user -> user.getAge() >= 18) .findFirst(); } } ``` When I call `findFirstAdult()` on a list that contains only minors, I'm getting the following exception: ``` Exception in thread "main" java.util.NoSuchElementException: No value present ``` I expected it to simply return an empty `Optional`, but it seems like I'm missing something in the way I'm handling the result. I've checked that the list is not null, and I'm using Java 17 with no additional libraries involved. Am I misunderstanding how `Optional` works in this context, or is there a different approach I should take to avoid this exception? Any insights would be appreciated!