diff --git a/jans-auth-server/server/src/main/java/io/jans/as/server/authorize/ws/rs/AuthorizeRestWebServiceImpl.java b/jans-auth-server/server/src/main/java/io/jans/as/server/authorize/ws/rs/AuthorizeRestWebServiceImpl.java
index 00114a167e4..45da22a06c2 100644
--- a/jans-auth-server/server/src/main/java/io/jans/as/server/authorize/ws/rs/AuthorizeRestWebServiceImpl.java
+++ b/jans-auth-server/server/src/main/java/io/jans/as/server/authorize/ws/rs/AuthorizeRestWebServiceImpl.java
@@ -70,6 +70,7 @@
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.lang.ArrayUtils;
 import org.apache.commons.lang.StringUtils;
+import org.jetbrains.annotations.Nullable;
 import org.json.JSONObject;
 import org.slf4j.Logger;