HTTP Status Codes

By default, a 200 (OK) status is automatically set as the HTTP status when a Java method executes successfully.

Other status codes can be generated by throwing a BasicHttpException with a specific HTTP status code, or calling HttpServletResponse.setStatus(int).

Non-OK (200) status codes are automatically triggered by the following conditions:

Code	Description	When triggered
401	Unauthorized	A org.apache.juneau.rest.guard prevented the method from being executed
404	Not Found	No matching path patterns were found on any method
405	Method Not Implemented	A path pattern matched but no Java methods were found for the HTTP method
406	Not Acceptable	A path pattern matched but no Java methods were found with a matching serializer for the Accept on the request
412	Precondition Failed	A path pattern matched but no Java methods were found that were not rejected by org.apache.juneau.rest.matcher
415	Unsupported Media Type	A path pattern matched but no Java methods were found with a matching parser for the Content-Type on the request
500	Internal Server Error	The Java method threw an exception other than BasicHttpException