diff --git a/core-jaxrs/src/main/java/org/keycloak/SkeletonKeyContextResolver.java b/core-jaxrs/src/main/java/org/keycloak/SkeletonKeyContextResolver.java
index 01aafd6e78..8c99cad92a 100755
--- a/core-jaxrs/src/main/java/org/keycloak/SkeletonKeyContextResolver.java
+++ b/core-jaxrs/src/main/java/org/keycloak/SkeletonKeyContextResolver.java
@@ -31,7 +31,7 @@ public class SkeletonKeyContextResolver implements ContextResolver<ObjectMapper>
 
     @Override
     public ObjectMapper getContext(Class<?> type) {
-        if (type.getPackage().getName().startsWith(getClass().getPackage().getName())) return mapper;
+        if (type.getPackage() != null && type.getPackage().getName().startsWith(getClass().getPackage().getName())) return mapper;
         return null;
     }
 }