Hello Rafal! Please provide more details like the Camel version you are using in further questions. Please have a look here: http://camel.apache.org/how-can-i-get-help.html
However, I assume you have a String as payload in your message. The default Camel type converter mechanism is able to convert this payload also into an InputStream. This is the reason, why this is ambiguous for Camel... I wondering, if we SHOULD make Camel a bit smarter here. I made a patch which fixes this issue. We check whether the message payload is an instance of the bean method argument. If so, we will use this method and don't convert the body. Any objections? Cheers, Christian
