Fix completers for CLI app command

Change-Id: I4a480e326202e67440ee05520514a26e78b308ef
diff --git a/cli/src/main/java/org/onosproject/cli/app/ApplicationNameCompleter.java b/cli/src/main/java/org/onosproject/cli/app/ApplicationNameCompleter.java
index badbcd8..2d0a6f7 100644
--- a/cli/src/main/java/org/onosproject/cli/app/ApplicationNameCompleter.java
+++ b/cli/src/main/java/org/onosproject/cli/app/ApplicationNameCompleter.java
@@ -15,6 +15,7 @@
  */
 package org.onosproject.cli.app;
 
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.apache.karaf.shell.api.console.CommandLine;
 import org.apache.karaf.shell.api.console.Session;
 import org.apache.karaf.shell.support.completers.StringsCompleter;
@@ -43,6 +44,7 @@
 /**
  * Application name completer.
  */
+@Service
 public class ApplicationNameCompleter extends AbstractCompleter {
     @Override
     public int complete(Session session, CommandLine commandLine, List<String> candidates) {