[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/cli/src/main/java/org/onosproject/cli/net/vnet/VirtualPortCompleter.java b/cli/src/main/java/org/onosproject/cli/net/vnet/VirtualPortCompleter.java
index 19a31a3..2660428 100644
--- a/cli/src/main/java/org/onosproject/cli/net/vnet/VirtualPortCompleter.java
+++ b/cli/src/main/java/org/onosproject/cli/net/vnet/VirtualPortCompleter.java
@@ -18,7 +18,6 @@
 
 import static org.onlab.osgi.DefaultServiceDirectory.getService;
 
-import org.apache.karaf.shell.console.completer.ArgumentCompleter.ArgumentList;
 import org.onosproject.cli.AbstractChoicesCompleter;
 import org.onosproject.incubator.net.virtual.NetworkId;
 import org.onosproject.incubator.net.virtual.VirtualNetworkService;
@@ -39,9 +38,8 @@
 public class VirtualPortCompleter extends AbstractChoicesCompleter {
     @Override
     protected List<String> choices() {
-        ArgumentList args = getArgumentList();
         //parse argument list for network id
-        String[] argsArray = args.getArguments();
+        String[] argsArray = commandLine.getArguments();
         for (String str : argsArray) {
             if (str.matches("[0-9]+")) {
                 long networkId = Long.valueOf(str);