diff --git a/kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/utils/KubernetesVersionPriority.java b/kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/utils/KubernetesVersionPriority.java index c7875cfead1..2193fcc1f4e 100644 --- a/kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/utils/KubernetesVersionPriority.java +++ b/kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/utils/KubernetesVersionPriority.java @@ -96,6 +96,7 @@ private static List<Version> sortByPriority(List<String> versions) { * @see KubernetesVersionPriority */ public static <T> List<T> sortByPriority(List<T> resources, Function<T, String> versionProvider) { + Utils.checkNotNull(versionProvider, "versionProvider function can't be null"); if (resources == null || resources.isEmpty()) { return Collections.emptyList(); }