SONAR suggestions - prevent truncation of arithmetic expressions

Change-Id: I4694c0c3183b991a4f0db793f584bc77a5fb7d60
diff --git a/cli/src/main/java/org/onosproject/cli/net/WipeOutCommand.java b/cli/src/main/java/org/onosproject/cli/net/WipeOutCommand.java
index e137d00..cd42752 100644
--- a/cli/src/main/java/org/onosproject/cli/net/WipeOutCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/net/WipeOutCommand.java
@@ -96,7 +96,7 @@
         intentsToWithdrawn.forEach(intentService::withdraw);
         try {
             // Wait 1.5 seconds for each Intent
-            completableFuture.get(intentsToWithdrawn.size() * 1500, TimeUnit.MILLISECONDS);
+            completableFuture.get(intentsToWithdrawn.size() * 1500L, TimeUnit.MILLISECONDS);
         } catch (InterruptedException e) {
             print("Got interrupted exception while withdrawn Intents " + e.toString());
         } catch (ExecutionException e) {