X-Git-Url: https://gerrit.onap.org/r/gitweb?p=policy%2Fengine.git;a=blobdiff_plain;f=PolicyEngineUtils%2Fsrc%2Fmain%2Fjava%2Forg%2Fonap%2Fpolicy%2Fstd%2FStdPDPNotification.java;h=b863fbba5720488b13d67d474a77d265df5c63da;hp=1640fe8db837d736e8b258dbd170e74497d5bdf7;hb=e9b8aa0223e6f042c0533176ae8222fb061852de;hpb=399fc3abc5aa64b25dbf1e4b795e66158f6da27b

diff --git a/PolicyEngineUtils/src/main/java/org/onap/policy/std/StdPDPNotification.java b/PolicyEngineUtils/src/main/java/org/onap/policy/std/StdPDPNotification.java
index 1640fe8db..b863fbba5 100644
--- a/PolicyEngineUtils/src/main/java/org/onap/policy/std/StdPDPNotification.java
+++ b/PolicyEngineUtils/src/main/java/org/onap/policy/std/StdPDPNotification.java
@@ -2,14 +2,14 @@
  * ============LICENSE_START=======================================================
  * PolicyEngineUtils
  * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017, 2019 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -21,7 +21,9 @@
 package org.onap.policy.std;
 
 import java.util.Collection;
+import java.util.Collections;
 import java.util.HashSet;
+
 import org.onap.policy.api.LoadedPolicy;
 import org.onap.policy.api.NotificationType;
 import org.onap.policy.api.PDPNotification;
@@ -42,7 +44,7 @@ public class StdPDPNotification implements PDPNotification {
             removed.addAll(removedPolicies);
             return this.removed;
         }
-        return null;
+        return Collections.emptyList();
     }
 
     @Override
@@ -52,7 +54,7 @@ public class StdPDPNotification implements PDPNotification {
             updated.addAll(loadedPolicies);
             return updated;
         }
-        return null;
+        return Collections.emptyList();
     }
 
     @Override