New and direct StorageService method for creating an AtomicCounter

Change-Id: I8c189584dde590842075bea7e03c4c8ecf8d72c2
diff --git a/apps/test/loadtest/src/main/java/org/onosproject/loadtest/DistributedConsensusLoadTest.java b/apps/test/loadtest/src/main/java/org/onosproject/loadtest/DistributedConsensusLoadTest.java
index d3a860f..9287f32 100644
--- a/apps/test/loadtest/src/main/java/org/onosproject/loadtest/DistributedConsensusLoadTest.java
+++ b/apps/test/loadtest/src/main/java/org/onosproject/loadtest/DistributedConsensusLoadTest.java
@@ -95,9 +95,8 @@
         appId = coreService.registerApplication("org.onosproject.loadtest");
         log.info("Started with {}", appId);
         for (int i = 0; i < TOTAL_COUNTERS; ++i) {
-            AsyncAtomicCounter counter = storageService.atomicCounterBuilder()
-                                .withName(String.format("onos-app-loadtest-counter-%d", i))
-                                .build();
+            AsyncAtomicCounter counter =
+                storageService.getAsyncAtomicCounter(String.format("onos-app-loadtest-counter-%d", i));
             counters.add(counter);
         }
         reporter.scheduleWithFixedDelay(() -> {