[WIP] apps CLI changes for karaf upgrade

Change-Id: I283efc39c7d4f4b31344f1d2d0cdd2b98a60932d
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/cli/subnet/SubnetRemoveCommand.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/cli/subnet/SubnetRemoveCommand.java
index 44f5dbb..951c477 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/cli/subnet/SubnetRemoveCommand.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/cli/subnet/SubnetRemoveCommand.java
@@ -17,8 +17,8 @@
 
 import java.util.Set;
 
-import org.apache.karaf.shell.commands.Argument;
-import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.vtnrsc.SubnetId;
 import org.onosproject.vtnrsc.subnet.SubnetService;
@@ -36,7 +36,7 @@
     String id = null;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         SubnetService service = get(SubnetService.class);
         Set<SubnetId> subnetsSet = Sets.newHashSet();
         subnetsSet.add(SubnetId.subnetId(id));