[WIP] apps CLI changes for karaf upgrade

Change-Id: I283efc39c7d4f4b31344f1d2d0cdd2b98a60932d
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/cli/DhcpRelayCommand.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/cli/DhcpRelayCommand.java
index 90816b0..518263b 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/cli/DhcpRelayCommand.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/cli/DhcpRelayCommand.java
@@ -17,8 +17,8 @@
 package org.onosproject.dhcprelay.cli;
 
 
-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.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
@@ -80,7 +80,7 @@
 
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         List<DhcpServerInfo> defaultDhcpServerInfoList = DHCP_RELAY_SERVICE.getDefaultDhcpServerInfoList();
         List<DhcpServerInfo> indirectDhcpServerInfoList = DHCP_RELAY_SERVICE.getIndirectDhcpServerInfoList();