refactor protected member into private with protected getter
remove unused import
fix typo in javadoc
add members for current access-grant and global oauth2-template to spice-service
initialize global oauth2-template in spice-service
TODO: initializing with null right now
add members for access-grant and oauth2-template to retry-policy
refactor constructor of retry-policy to set access-grant and oauth2-template
deconstruct reason for failed request and log it
(includes TODO-comments)
initialize spice-request to refresh access-token and encapsulate it into an always-expired cached request
initialize set of single request-listener for the refresh-request
TODO: request-listener is null here
add spice-request to refresh access-token to service's queue
formatting whitespaces