Does java.util.List.isEmpty() check if the list itself is null?

Does java.util.List.isEmpty() check if the list itself is null, or do I have to do this check myself?

For example:

List<String> test = null;

if (!test.isEmpty()) {
    for (String o : test) {
        // do stuff here            
    }
}

Will this throw a NullPointerException because test is null?