gateway-provider-security-clientcert/src/main/java/org/apache/knox/gateway/clientcert/filter/ClientCertFilter.java
gateway-provider-security-preauth/src/main/java/org/apache/knox/gateway/preauth/filter/AbstractPreAuthFederationFilter.java

gateway-provider-security-clientcert/src/main/java/org/apache/knox/gateway/clientcert/deploy/ClientCertDeploymentContributor.java
gateway-provider-security-preauth/src/main/java/org/apache/knox/gateway/preauth/deploy/HeaderPreAuthContributor.java