Get empty string when null

Question

I want to get string values of my fields (they can be type of long string or any object),

if a field is null then it should return empty string, I did this with guav

Answer 1

In Java 9+ use : Objects.requireNonNullElse (obj, defaultObj) https://docs.oracle.com/javase/9/docs/api/java/util/Objects.html#requireNonNullElse-T-T-

//-- returns empty string if obj is null
Objects.requireNonNullElse (obj, "")