@Override
            protected void addValueFrom(Input input, Collection<V> collection)
                    throws IOException
            {
                RuntimeCollectionField.this.addValueFrom(input, collection);
            }
Since we cannot inherit multiple classes, we create this Collection schema simply to delegate to the wrapping
class' abstract methods.
protostuff-runtime/src/main/java/io/protostuff/runtime/RuntimeCollectionField.java