[WIP] apps CLI changes for karaf upgrade

Change-Id: I283efc39c7d4f4b31344f1d2d0cdd2b98a60932d
diff --git a/apps/nodemetrics/mgr/src/main/java/org/onosproject/nodemetrics/cli/ShowNodeCpuUsageCommand.java b/apps/nodemetrics/mgr/src/main/java/org/onosproject/nodemetrics/cli/ShowNodeCpuUsageCommand.java
index 12dd649..3613d16 100644
--- a/apps/nodemetrics/mgr/src/main/java/org/onosproject/nodemetrics/cli/ShowNodeCpuUsageCommand.java
+++ b/apps/nodemetrics/mgr/src/main/java/org/onosproject/nodemetrics/cli/ShowNodeCpuUsageCommand.java
@@ -16,8 +16,8 @@
 
 package org.onosproject.nodemetrics.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.onosproject.cli.AbstractShellCommand;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.nodemetrics.NodeCpuUsage;
@@ -40,7 +40,7 @@
             .get(NodeMetricsService.class);
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         if (nodeId != null) {
             NodeCpuUsage cpu = nodeService.cpu(NodeId.nodeId(nodeId));
             if (Objects.nonNull(cpu)) {