Oauth2 refresh token gives org.springframework.dao.InvalidDataAccessApiUsageException - spring-boot

Question

I have configured the OAuth2 authorization server and resource server using spring-cloud-starter-oauth2. The authorization server uses JdbcTokenStore to persist the token (I still have the "Failed to find refresh token for token xxxx" message which seems to be a bug). However, the thing that I wish to resolve here is:
I am able to request for a new token and use it to fetch data from the resource server. However, once the token expires, I cannot refresh the token using the given refresh token.
Using curl:
curl -XPOST foo:secret#localhost:9009/myauthserver/oauth/token -d grant_type=refresh_token -d refresh_token=4187f090-a355-4613-bc17-2e4565ffdc0b
will return:
{"error":"server_error","error_description":"The given id must not be null!; nested exception is java.lang.IllegalArgumentException: The given id must not be null!"}
At the backend, the error is:
2017-02-20 15:47:31.058 WARN 11152 --- [nio-9009-exec-9]
.m.m.a.ExceptionHandlerExceptionResolver : Resolved exception caused
by Handler execution:
org.springframework.dao.InvalidDataAccessApiUsageException: The given
id must not be null!; nested exception is
java.lang.IllegalArgumentException: The given id must not be null!
The interesting thing is if I give an invalid token, it actually returns
{"error":"invalid_grant","error_description":"Invalid refresh token: 4187f090-a355-4613-bc17-2e4565ffdcee"}