Remove explicit use of method reference

Change-Id: Idb08d28d66b4285a738b2bf98e1c61882d179da1
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixWorkQueue.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixWorkQueue.java
index 0085932..569a597 100644
--- a/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixWorkQueue.java
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixWorkQueue.java
@@ -128,7 +128,7 @@
                                             executor,
                                             completedTaskAccumulator));
         return register().thenCompose(v -> take(parallelism))
-                         .thenAccept(taskProcessor.get()::accept);
+                         .thenAccept(taskProcessor.get());
     }
 
     @Override