public FluentArrayList<E> appendAll(E ... elements) {
        if (elements != null) {
            for (E e: elements)
                add(e);
        }
        return this;
    }
Fluent method to add the elements to this list.
aws-java-sdk-dynamodb/src/main/java/com/amazonaws/services/dynamodbv2/document/utils/FluentArrayList.java