Sonar cleanup for PolicyEngineUtils

[policy/engine.git] / PolicyEngineUtils / src / main / java / org / onap / policy / std / StdPDPNotification.java

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 1640fe8..54b9bb0 100644 (file)
--- a/PolicyEngineUtils/src/main/java/org/onap/policy/std/StdPDPNotification.java
+++ b/PolicyEngineUtils/src/main/java/org/onap/policy/std/StdPDPNotification.java
@@ -21,6 +21,7 @@
 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;
@@ -42,7 +43,7 @@ public class StdPDPNotification implements PDPNotification {
             removed.addAll(removedPolicies);
             return this.removed;
         }
-        return null;
+        return Collections.emptyList();
     }
 
     @Override
@@ -52,7 +53,7 @@ public class StdPDPNotification implements PDPNotification {
             updated.addAll(loadedPolicies);
             return updated;
         }
-        return null;
+        return Collections.emptyList();
     }
 
     @Override