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import java.util.List;
import java.util.Optional;
/**
* Test case for rule #2: "Never use Optional.get() unless you can prove that the Optional is
* present."
*/
public class Marks2 {
class Customer {
int getID() {
return 42;
}
String getName() {
return "Fozzy Bear";
}
}
String customerNameByID(List<Customer> custList, int custID) {
Optional<Customer> opt = custList.stream().filter(c -> c.getID() == custID).findFirst();
// :: error: (method.invocation.invalid)
return opt.get().getName();
}
}
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