[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/cli/src/main/java/org/onosproject/cli/net/FlowsListCommand.java b/cli/src/main/java/org/onosproject/cli/net/FlowsListCommand.java
index 5c26b06..ddac49e 100644
--- a/cli/src/main/java/org/onosproject/cli/net/FlowsListCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/net/FlowsListCommand.java
@@ -19,9 +19,10 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
-import org.apache.karaf.shell.commands.Argument;
-import org.apache.karaf.shell.commands.Command;
-import org.apache.karaf.shell.commands.Option;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.karaf.shell.api.action.Option;
 import org.onlab.util.StringFilter;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.core.ApplicationId;
@@ -54,6 +55,7 @@
 /**
  * Lists all currently-known flows.
  */
+@Service
 @Command(scope = "onos", name = "flows",
          description = "Lists all currently-known flows.")
 public class FlowsListCommand extends AbstractShellCommand {
@@ -111,7 +113,7 @@
     private StringFilter contentFilter;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         CoreService coreService = get(CoreService.class);
         DeviceService deviceService = get(DeviceService.class);
         FlowRuleService service = get(FlowRuleService.class);