is there a java 8 syntax for collections.addAll to work with null parameters?

Question

List<Integer> list = Lists.newArrayList(1,2,3);

List<Integer> list2 = null;

//throws nullPointer

list.addAll(list2);

//check here    

if (list2!=null){

    list.addAll(list2);   

}

Is there a Java 8 way of doing it simple in one-line.

This is one I have. but I actually don't need the boolean created.

boolean added = list2!=null ? list1.addAll(list2) : false

Answer 1

For Java 8 you can try, 

Optional.ofNullable(list2).ifPresent(list::addAll);

But I prefer ternary expression.