gateway-provider-security-clientcert/src/main/java/org/apache/knox/gateway/clientcert/filter/ClientCertFilter.java
gateway-provider-security-pac4j/src/main/java/org/apache/knox/gateway/pac4j/filter/Pac4jIdentityAdapter.java

gateway-provider-security-clientcert/src/main/java/org/apache/knox/gateway/clientcert/deploy/ClientCertDeploymentContributor.java
gateway-provider-security-pac4j/src/main/java/org/apache/knox/gateway/pac4j/deploy/Pac4jFederationProviderContributor.java