From 70d164a193345a8060c9e41ccccf63b3e5528c69 Mon Sep 17 00:00:00 2001
From: Georgios Andrianakis <geoand@gmail.com>
Date: Wed, 5 Dec 2018 18:40:50 +0200
Subject: [PATCH] Prevent NPE if k8s Client returns null for metadata and/or
 annotations (#283)

Fixes #282
---
 .../cloud/kubernetes/discovery/KubernetesDiscoveryClient.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/spring-cloud-kubernetes-discovery/src/main/java/org/springframework/cloud/kubernetes/discovery/KubernetesDiscoveryClient.java b/spring-cloud-kubernetes-discovery/src/main/java/org/springframework/cloud/kubernetes/discovery/KubernetesDiscoveryClient.java
index babee7c6..3ed8c31c 100644
--- a/spring-cloud-kubernetes-discovery/src/main/java/org/springframework/cloud/kubernetes/discovery/KubernetesDiscoveryClient.java
+++ b/spring-cloud-kubernetes-discovery/src/main/java/org/springframework/cloud/kubernetes/discovery/KubernetesDiscoveryClient.java
@@ -135,6 +135,10 @@ public class KubernetesDiscoveryClient implements DiscoveryClient {
 	// but with the keys prefixed
 	// if the prefix is null or empty, the map itself is returned (unchanged of course)
 	private Map<String, String> getMapWithPrefixedKeys(Map<String, String> map, String prefix) {
+	    if(map == null) {
+	        return new HashMap<>();
+        }
+
 		// when the prefix is empty just return an map with the same entries
 		if (!StringUtils.hasText(prefix)) {
 			return map;