In the JSON Add-on documentation (http://static.springsource.org/spring-roo/reference/html/base-json.html), the advertised curl example for the method "public ResponseEntity<String> createFromJson(@RequestBody String json)" is missing. That is, the text
"This method accepts a JSON document sent via HTTP POST converts it into an Owner instance and persists that new instance before returning a HTTP 201 (CREATED) status code. The accompanying curl command is as follows:"
is not followed by a curl example, but rather the "public ResponseEntity<String> createFromJsonArray(@RequestBody String json)" implementation.