In ScopeInterceptor.getKey(), the value determined for CLASS or ACTION configurations is cached in the instance variable "key". In the case where the same interceptor instance is used for multiple action invocations, this results in only one key being used for different actions. The attached reproduction works in JBOSS (perhaps plain Tomcat as well), but does not reproduce the bug in Quickstart. I assume this is because in the Quickstart environment, a new instance of the interceptor is created every time.