[WIP] apps CLI changes for karaf upgrade

Change-Id: I283efc39c7d4f4b31344f1d2d0cdd2b98a60932d
diff --git a/apps/events/src/main/java/org/onosproject/events/EventsCommand.java b/apps/events/src/main/java/org/onosproject/events/EventsCommand.java
index 2664344..0a4329f 100644
--- a/apps/events/src/main/java/org/onosproject/events/EventsCommand.java
+++ b/apps/events/src/main/java/org/onosproject/events/EventsCommand.java
@@ -22,8 +22,8 @@
 import java.util.stream.Collector;
 import java.util.stream.Stream;
 
-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.util.Tools;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.cluster.ClusterEvent;
@@ -101,7 +101,7 @@
     private long maxSize = -1;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         EventHistoryService eventHistoryService = get(EventHistoryService.class);
 
         Stream<Event<?, ?>> events = eventHistoryService.history().stream();