[WIP] apps CLI changes for karaf upgrade

Change-Id: I283efc39c7d4f4b31344f1d2d0cdd2b98a60932d
diff --git a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/cli/McastTreeListCommand.java b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/cli/McastTreeListCommand.java
index 89f107a..92fbf2c 100644
--- a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/cli/McastTreeListCommand.java
+++ b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/cli/McastTreeListCommand.java
@@ -21,8 +21,8 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Multimap;
-import org.apache.karaf.shell.commands.Command;
-import org.apache.karaf.shell.commands.Option;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Option;
 import org.onlab.packet.IpAddress;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.mcast.cli.McastGroupCompleter;
@@ -63,7 +63,7 @@
     String source = null;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         // Get SR service and the handled mcast groups
         SegmentRoutingService srService = get(SegmentRoutingService.class);
         Set<IpAddress> mcastGroups = ImmutableSet.copyOf(srService.getMcastLeaders(null)