gateway-provider-security-authc-anon/src/main/java/org/apache/knox/gateway/filter/AnonymousAuthFilter.java
gateway-provider-security-pac4j/src/main/java/org/apache/knox/gateway/pac4j/filter/Pac4jIdentityAdapter.java

gateway-provider-security-authc-anon/src/main/java/org/apache/knox/gateway/deploy/AnonymousAuthDeploymentContributor.java
gateway-provider-security-pac4j/src/main/java/org/apache/knox/gateway/pac4j/deploy/Pac4jFederationProviderContributor.java