gateway-provider-security-jwt/src/main/java/org/apache/knox/gateway/provider/federation/jwt/filter/AccessTokenFederationFilter.java
gateway-provider-security-preauth/src/main/java/org/apache/knox/gateway/preauth/filter/AbstractPreAuthFederationFilter.java

gateway-provider-security-jwt/src/main/java/org/apache/knox/gateway/provider/federation/jwt/filter/AbstractJWTFilter.java
gateway-provider-security-preauth/src/main/java/org/apache/knox/gateway/preauth/filter/AbstractPreAuthFederationFilter.java