replace put(clusterName, null) with remove(clusterName) in Main.dispatchServiceWatch to avoid NPE

alai8 · alai8 · commit d6cd7313f80b · 2018-08-16T08:41:16.000-07:00
diff --git a/operator/src/main/java/oracle/kubernetes/operator/Main.java b/operator/src/main/java/oracle/kubernetes/operator/Main.java
@@ -960,7 +960,7 @@ private static void dispatchServiceWatch(Watch.Response<V1Service> item) {
                   }
                 }
               } else if (clusterName != null) {
-                V1Service oldService = info.getClusters().put(clusterName, null);
+                V1Service oldService = info.getClusters().remove(clusterName);
                 if (oldService != null) {
                   // Service was deleted, but clusters still contained a non-null entry
                   LOGGER.info(

Original file line number	Diff line number	Diff line change
`@@ -960,7 +960,7 @@ private static void dispatchServiceWatch(Watch.Response<V1Service> item) {`
`960`	`960`	`}`
`961`	`961`	`}`
`962`	`962`	`} else if (clusterName != null) {`
`963`		`- V1Service oldService = info.getClusters().put(clusterName, null);`
	`963`	`+ V1Service oldService = info.getClusters().remove(clusterName);`
`964`	`964`	`if (oldService != null) {`
`965`	`965`	`// Service was deleted, but clusters still contained a non-null entry`
`966`	`966`	`LOGGER.info(`