[keycloak-user] Read access token values with Spring-Boot-2-Adaper or Spring-Security-Adapter

[Kamil Kitowski]

Hello everyone,
in my Keycloak configuration I mapped some additional information into my
access token and I'd like to read them in by backend services.
Is it achievable with just these adapters or do I need additional libraries
to parse incoming JWT token?
Best regards,
-- 
Kitowski Kamil