Helper in order to remove null reference in Java List ?

Question

Hi,

Suppose the following List

List<String> list = new ArrayList<String>();

list.add("s1");
list.add("s2");
list.add(null);
list.add("s3");
list.add(null);
list.add("s4");

I need a Helper class that removes null references. Something like

SomeHelper.removeNullReference(list);

Now, list only contains "s1", "s2", "s4", "s4". Non-null references.

What should i use in order to fulfill this requirement ?

regards,

Answer 1

list.removeAll(Collections.singletonList(null));