CamelTemplate.extractResultBody question

[William Tam]

In org.apache.camel.CamelTemplate, shouldn't it just return null if
result.getOut().getBody() is null?  Why does it return the IN body as
a result?


   protected Object extractResultBody(E result) {
        Object answer = null;
        if (result != null) {
            answer = result.getOut().getBody();
            if (answer == null) {
                answer = result.getIn().getBody();
            }
        }

Regards,
William