From 4a5208e582ae94e552cc9cb4135487696c61dac3 Mon Sep 17 00:00:00 2001
From: Aled Sage <aled.sage@gmail.com>
Date: Wed, 20 Dec 2017 23:57:41 +0000
Subject: [PATCH] Fix NPE in CouchbaseCluster enricher

---
 .../brooklyn/entity/nosql/couchbase/CouchbaseClusterImpl.java    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/software/nosql/src/main/java/org/apache/brooklyn/entity/nosql/couchbase/CouchbaseClusterImpl.java b/software/nosql/src/main/java/org/apache/brooklyn/entity/nosql/couchbase/CouchbaseClusterImpl.java
index 1c9a37c52..ed8b7ee00 100644
--- a/software/nosql/src/main/java/org/apache/brooklyn/entity/nosql/couchbase/CouchbaseClusterImpl.java
+++ b/software/nosql/src/main/java/org/apache/brooklyn/entity/nosql/couchbase/CouchbaseClusterImpl.java
@@ -290,6 +290,7 @@ protected void connectSensors() {
     private final static class ListOfHostAndPort implements Function<Set<Entity>, List<String>> {
         @Override public List<String> apply(Set<Entity> input) {
             List<String> addresses = Lists.newArrayList();
+            if (input == null) return addresses;
             for (Entity entity : input) {
                 addresses.add(String.format("%s",
                         BrooklynAccessUtils.getBrooklynAccessibleAddress(entity, entity.getAttribute(CouchbaseNode.COUCHBASE_WEB_ADMIN_PORT))));