OPTIONS HTTP method cannot return JSON response but 405 method

Testing this I expected a HTTP "OPTIONS" request in both XML and JSON formats to return 200 and a payload describing the OPTIONS available. The XML test was successful, but the JSON test failed and threw a 405 HTTP ERROR.

###Test setup ###

install this http://nexus.opendaylight.org/content/repositories/opendaylight.snapshot/org/opendaylight/integration/distribution-karaf/0.2.0-SNAPSHOT/distribution-karaf-0.2.0-20141002.195140-199.zip.sha1

###Steps

Create a data resource

curl -v -X POST -d "<nodes xmlns=\"urn:opendaylight:inventory\"><node><id>id1</id></node></nodes>" localhost:8080/restconf/config/ --header "Content-Type:application/xml" --header "Accept:application/xml"

Verify it was present

curl -v -X GET 172.29.50.236:8080/re "Content-Type:application/xml" --header "Accept:application/xml"

Now I tried to check the OPTIONS, looks ok with XML

curl -v -X OPTIONS 172.29.50.236:8080/restconf/config/opendaylight-inventory:nodes/node/id1 "Content-Type:application/xml" --header "Accept:application/xml

This returns XML you can see it in the attachment.

curl -v -X OPTIONS 172.29.50.236:8080/restconf/config/opendaylight-inventory:nodes/node/id1 "Content-Type:application/xml" --header "Accept:application/json

returns $)% status and a HTML page with a tomcat error message

"The resource identified by this request is only capable of generating responses with characteristics not acceptable according to the request "accept" headers."