Java Optional: Handling Null Values Without Using If Statements

You can use the 'Optional' class to check for null values and handle them without using an 'if' statement. Here's an example:

return Stream.of(LocalAndMunicipalCompanyEnum.values())
        .filter(predicate)
        .findFirst()
        .map(mapper)
        .orElseGet(() -> value);

In this code, the 'orElseGet' method is used to provide a fallback value ('value') if the 'Optional' is empty. The lambda expression '() -> value' is used to create a supplier that returns the fallback value. This ensures that the fallback value is only evaluated if necessary.