Workaround for Eclipse

- Current Eclipse compiler fails to infer appropriate
  generic type.
  Workaround the issue by explicitly specifying the type.

  Might be related to:
   https://bugs.eclipse.org/bugs/show_bug.cgi?id=467561

Change-Id: I7f41fd1a33f165fa8a57120a6f9a42cf587f94cc
diff --git a/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultDistributedQueue.java b/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultDistributedQueue.java
index d8af9e6..5f69fde 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultDistributedQueue.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultDistributedQueue.java
@@ -91,7 +91,7 @@
                        .whenComplete((r, e) -> timer.stop(e))
                        .thenCompose(v -> {
                            if (v != null) {
-                               return CompletableFuture.completedFuture(serializer.decode(v));
+                               return CompletableFuture.<E>completedFuture(serializer.decode(v));
                            }
                            CompletableFuture<E> newPendingFuture = new CompletableFuture<>();
                            pendingFutures.add(newPendingFuture);