diff --git a/cas-client-core/src/test/java/org/jasig/cas/client/validation/Cas20ServiceTicketValidatorTests.java b/cas-client-core/src/test/java/org/jasig/cas/client/validation/Cas20ServiceTicketValidatorTests.java
index ed599c4..83e6c00 100644
--- a/cas-client-core/src/test/java/org/jasig/cas/client/validation/Cas20ServiceTicketValidatorTests.java
+++ b/cas-client-core/src/test/java/org/jasig/cas/client/validation/Cas20ServiceTicketValidatorTests.java
@@ -28,6 +28,7 @@ import org.junit.Test;
 import static org.junit.Assert.*;
 
 import java.io.UnsupportedEncodingException;
+import java.util.List;
 
 /**
  * Test cases for the {@link Cas20ServiceTicketValidator}.