diff --git a/cas-server-core-authentication/src/main/java/org/jasig/cas/authentication/AuthenticationContextValidator.java b/cas-server-core-authentication/src/main/java/org/jasig/cas/authentication/AuthenticationContextValidator.java
index <HASH>..<HASH> 100644
--- a/cas-server-core-authentication/src/main/java/org/jasig/cas/authentication/AuthenticationContextValidator.java
+++ b/cas-server-core-authentication/src/main/java/org/jasig/cas/authentication/AuthenticationContextValidator.java
@@ -18,7 +18,6 @@ import org.springframework.stereotype.Component;
 
 import java.util.Arrays;
 import java.util.Collection;
-import java.util.Iterator;
 import java.util.Map;
 import java.util.Optional;
updated to merge with master and account for reviews