Completer fixes for core ONOS CLI commands

Change-Id: Icedfc542ad93a2825b592f3deb6cd96d91779544
diff --git a/cli/src/main/java/org/onosproject/cli/net/IntentPushTestCommand.java b/cli/src/main/java/org/onosproject/cli/net/IntentPushTestCommand.java
index bca79353..bc51f88 100644
--- a/cli/src/main/java/org/onosproject/cli/net/IntentPushTestCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/net/IntentPushTestCommand.java
@@ -18,8 +18,10 @@
 import com.google.common.collect.Lists;
 import org.apache.karaf.shell.api.action.Argument;
 import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Completion;
 import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.apache.karaf.shell.api.action.Option;
+import org.apache.karaf.shell.support.completers.NullCompleter;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.MacAddress;
 import org.onosproject.cli.AbstractShellCommand;
@@ -60,16 +62,19 @@
     @Argument(index = 0, name = "ingressDevice",
               description = "Ingress Device/Port Description",
               required = true, multiValued = false)
+    @Completion(ConnectPointCompleter.class)
     String ingressDeviceString = null;
 
     @Argument(index = 1, name = "egressDevice",
               description = "Egress Device/Port Description",
               required = true, multiValued = false)
+    @Completion(ConnectPointCompleter.class)
     String egressDeviceString = null;
 
     @Argument(index = 2, name = "numberOfIntents",
             description = "Number of intents to install/withdraw",
             required = true, multiValued = false)
+    @Completion(NullCompleter.class)
     String numberOfIntents = null;
 
     @Argument(index = 3, name = "keyOffset",