Java 8 Stream String Null Or Empty Filter

Question

I\'ve got Google Guava inside Stream:

this.map.entrySet().stream()
.filter(entity -> !Strings.isNullOrEmpty(entity.getValue()))
.map(obj -> String.form         


        

Answer 1

In java 11 there is a new method Predicate::not.

So you can filter out empty string :

list.stream()
  .filter(Objects::nonNull)
  .filter(Predicate.not(String::isEmpty))