Fix Sonar errors: public data members in classes

Change-Id: I7aca37d5553436167ac6e7b2206392f88bddc118
diff --git a/src/main/java/org/onosproject/segmentrouting/config/DeviceConfiguration.java b/src/main/java/org/onosproject/segmentrouting/config/DeviceConfiguration.java
index bd0db54..490bf4f 100644
--- a/src/main/java/org/onosproject/segmentrouting/config/DeviceConfiguration.java
+++ b/src/main/java/org/onosproject/segmentrouting/config/DeviceConfiguration.java
@@ -698,7 +698,7 @@
 
     private boolean isSuppressedPort(ConnectPoint connectPoint) {
         SegmentRoutingAppConfig appConfig = srManager.cfgService
-                .getConfig(srManager.appId, SegmentRoutingAppConfig.class);
+                .getConfig(srManager.appId(), SegmentRoutingAppConfig.class);
         if (appConfig != null && appConfig.suppressSubnet().contains(connectPoint)) {
             log.info("Interface configuration on port {} is ignored", connectPoint);
             return true;