In Java 8, transform Optional of an empty String in Optional.empty

Question

Given a String I need to get an Optional, whereby if the String is null or empty the result would be Optional.empty. I can do it this way:

String ppo = \"\";
Opt         


        

Answer 1

Java 11 answer:

var optionalString = Optional.ofNullable(str).filter(Predicate.not(String::isBlank));

String::isBlank deals with a broader range of 'empty' characters.