Spring oauth2 refresh token - Cannot convert access token to JSON

Question

I\'m trying to use a refresh token in a Spring OAuth application without success. The system will issue a refresh token on a password grant:

  {
  \"access_t         


        

Answer 1

I had the same issue. After some debugging it turned out my signature did not match.

In my case i set-up keys a bit differently, and there is a bug where the signing and verifying key miss-match.

https://github.com/spring-projects/spring-security-oauth/issues/1144