[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/protocols/netconf/ctl/src/main/java/org/onosproject/netconf/cli/impl/NetconfGetCommand.java b/protocols/netconf/ctl/src/main/java/org/onosproject/netconf/cli/impl/NetconfGetCommand.java
index 2d29fcd..b20bedd 100644
--- a/protocols/netconf/ctl/src/main/java/org/onosproject/netconf/cli/impl/NetconfGetCommand.java
+++ b/protocols/netconf/ctl/src/main/java/org/onosproject/netconf/cli/impl/NetconfGetCommand.java
@@ -49,7 +49,7 @@
     long timeoutSec = 30;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         DeviceId deviceId = DeviceId.deviceId(uri);
 
         NetconfController controller = get(NetconfController.class);