NPE and other code smells reported by sonar

Issue-ID: VID-278

Change-Id: Ib06ff30a0cc4e9d361a87b791513c8d38a09294a
Signed-off-by: Arindam Mondal <arind.mondal@samsung.com>

4 files changed, 4 insertions, 4 deletions

diff --git a/vid-app-common/src/main/java/org/onap/vid/aai/AaiResponseTranslator.java b/vid-app-common/src/main/java/org/onap/vid/aai/AaiResponseTranslator.java
index 6f503799..c7a98a8c 100644
--- a/vid-app-common/src/main/java/org/onap/vid/aai/AaiResponseTranslator.java
+++ b/vid-app-common/src/main/java/org/onap/vid/aai/AaiResponseTranslator.java
@@ -61,7 +61,7 @@ public class AaiResponseTranslator {
             final String errorMessage = aaiResponse.getErrorMessage();
             return Optional.of(new PortMirroringConfigDataError(
                     "Got " + aaiResponse.getHttpCode() + " from aai",
-                    errorMessage != null ? errorMessage.toString() : null)
+                    errorMessage != null ? errorMessage : null)
             );
         } else {
             return Optional.empty();
diff --git a/vid-app-common/src/main/java/org/onap/vid/aai/SubscriberListWithFilterData.java b/vid-app-common/src/main/java/org/onap/vid/aai/SubscriberListWithFilterData.java
index d7f9ad87..aab9fc6b 100644
--- a/vid-app-common/src/main/java/org/onap/vid/aai/SubscriberListWithFilterData.java
+++ b/vid-app-common/src/main/java/org/onap/vid/aai/SubscriberListWithFilterData.java
@@ -13,7 +13,7 @@ import java.util.List;
 public class SubscriberListWithFilterData {
 
     public SubscriberListWithFilterData(SubscriberList subscriberList, RoleValidator roleValidator){
-        List<Subscriber> subscribers = subscriberList != null ? subscriberList.customer : new ArrayList<Subscriber>();
+        List<Subscriber> subscribers = subscriberList != null ? subscriberList.customer : new ArrayList<>();
         List<SubscriberWithFilter> subscribersWithFilter = new ArrayList<>();
         for (Subscriber subscriber :subscribers){
             SubscriberWithFilter subscriberWithFilter = new SubscriberWithFilter();
diff --git a/vid-app-common/src/main/java/org/onap/vid/aai/model/AaiGetNetworkCollectionDetails/AaiGetNetworkCollectionDetailsHelper.java b/vid-app-common/src/main/java/org/onap/vid/aai/model/AaiGetNetworkCollectionDetails/AaiGetNetworkCollectionDetailsHelper.java
index 2d3cfb91..cb3e548d 100644
--- a/vid-app-common/src/main/java/org/onap/vid/aai/model/AaiGetNetworkCollectionDetails/AaiGetNetworkCollectionDetailsHelper.java
+++ b/vid-app-common/src/main/java/org/onap/vid/aai/model/AaiGetNetworkCollectionDetails/AaiGetNetworkCollectionDetailsHelper.java
@@ -14,7 +14,7 @@ public class AaiGetNetworkCollectionDetailsHelper {
     @JsonProperty("results")
     private List<Object> results = null;
     @JsonIgnore
-    private Map<String, Object> additionalProperties = new HashMap<String, Object>();
+    private Map<String, Object> additionalProperties = new HashMap<>();
 
     @JsonProperty("results")
     public List<Object> getResults() {
diff --git a/vid-app-common/src/main/java/org/onap/vid/aai/model/AaiGetPnfResponse.java b/vid-app-common/src/main/java/org/onap/vid/aai/model/AaiGetPnfResponse.java
index cd8cca8f..fa9fe935 100644
--- a/vid-app-common/src/main/java/org/onap/vid/aai/model/AaiGetPnfResponse.java
+++ b/vid-app-common/src/main/java/org/onap/vid/aai/model/AaiGetPnfResponse.java
@@ -20,7 +20,7 @@ public class AaiGetPnfResponse {
     @JsonProperty("results")
     public List<PnfResult> results = null;
     @JsonIgnore
-    private Map<String, Object> additionalProperties = new HashMap<String, Object>();
+    private Map<String, Object> additionalProperties = new HashMap<>();
 
     @JsonAnyGetter
     public Map<String, Object> getAdditionalProperties() {