[keycloak-user] Springboot adapter/Undertow/Tomcat + Authz with request.body claim

Hello everyone, Has anyone tried to read and push {request.body} as a claim in one of the following adapters: Springboot/Undertow/Tomcat? Trying Springboot with different containers I get the same result: the inputstream/channel is being read at an early stage in the flow and is not wrapped (buffered) what makes the body inaccessible for further application logic (parsers etc.). I've created an issue here: https://issues.jboss.org/browse/KEYCLOAK-11712 Maybe I'm doing something wrong? Maybe there is some easy way to make the inputstream buffered in undertow or tomcat?? -- Kind regards, Blazej