diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapAddCommand.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapAddCommand.java
index 8d9955f..61049ae 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapAddCommand.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapAddCommand.java
@@ -15,8 +15,9 @@
  */
 package org.onosproject.openstackvtap.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.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onlab.packet.IpPrefix;
 import org.onlab.packet.TpPort;
 import org.onosproject.cli.AbstractShellCommand;
@@ -30,6 +31,7 @@
 /**
  * Command line interface for adding openstack vTap rule.
  */
+@Service
 @Command(scope = "onos", name = "openstack-vtap-add",
         description = "OpenstackVtap activate")
 public class OpenstackVtapAddCommand extends AbstractShellCommand {
@@ -68,7 +70,7 @@
     String vTapTypeStr = "all";
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         DefaultOpenstackVtapCriterion.Builder
                     defaultVtapCriterionBuilder = DefaultOpenstackVtapCriterion.builder();
         if (makeCriterion(defaultVtapCriterionBuilder)) {
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapDeleteCommand.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapDeleteCommand.java
index e4a167b..a5f06ee 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapDeleteCommand.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapDeleteCommand.java
@@ -14,9 +14,10 @@
  * limitations under the License.
  */
 package org.onosproject.openstackvtap.cli;
-import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.cli.AbstractShellCommand;
-import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.api.action.Argument;
 import org.onosproject.openstackvtap.api.OpenstackVtap;
 import org.onosproject.openstackvtap.api.OpenstackVtapAdminService;
 import org.onosproject.openstackvtap.api.OpenstackVtapId;
@@ -24,6 +25,7 @@
 /**
  * Command line interface for removing openstack vTap rule.
  */
+@Service
 @Command(scope = "onos", name = "openstack-vtap-del",
         description = "OpenstackVtap deactivate")
 public class OpenstackVtapDeleteCommand extends AbstractShellCommand {
@@ -35,7 +37,7 @@
     String vTapId = "";
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         OpenstackVtap vTap = vTapService.removeVtap(OpenstackVtapId.vTapId(vTapId));
         if (vTap != null) {
             print("Removed OpenstackVtap with id { %s }", vTap.id().toString());
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapListCommand.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapListCommand.java
index afb9bbf..5ffc265 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapListCommand.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapListCommand.java
@@ -15,8 +15,9 @@
  */
 package org.onosproject.openstackvtap.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.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.openstackvtap.api.OpenstackVtap;
 import org.onosproject.openstackvtap.api.OpenstackVtapService;
@@ -28,6 +29,7 @@
 /**
  * Command line interface for listing openstack vTap rules.
  */
+@Service
 @Command(scope = "onos", name = "openstack-vtap-list",
         description = "OpenstackVtap list")
 public class OpenstackVtapListCommand extends AbstractShellCommand {
@@ -44,7 +46,7 @@
     private static final String FORMAT_RX_DEVICES  = "   rx devices: %s";
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         OpenstackVtap.Type type = getVtapTypeFromString(vTapType);
         Set<OpenstackVtap> openstackVtaps = vTapService.getVtaps(type);
         for (OpenstackVtap vTap : openstackVtaps) {
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapOutputCommand.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapOutputCommand.java
index 257cb9a..1a04f84 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapOutputCommand.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapOutputCommand.java
@@ -15,8 +15,9 @@
  */
 package org.onosproject.openstackvtap.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.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onlab.packet.VlanId;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.net.Device;
@@ -32,6 +33,7 @@
 /**
  * Command line interface for set openstack vTap output.
  */
+@Service
 @Command(scope = "onos", name = "openstack-vtap-output",
         description = "OpenstackVtap output setup")
 public class OpenstackVtapOutputCommand extends AbstractShellCommand {
@@ -57,7 +59,7 @@
     String vTapTypeStr = "all";
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         try {
             Device device = deviceService.getDevice(DeviceId.deviceId(id));
             if (device != null) {
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/ProtocolTypeCompleter.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/ProtocolTypeCompleter.java
index 3d0f747..feb6830 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/ProtocolTypeCompleter.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/ProtocolTypeCompleter.java
@@ -16,6 +16,7 @@
 package org.onosproject.openstackvtap.cli;
 
 import com.google.common.collect.Lists;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.cli.AbstractChoicesCompleter;
 
 import java.util.List;
@@ -23,6 +24,7 @@
 /**
  * IP protocol type completer.
  */
+@Service
 public class ProtocolTypeCompleter extends AbstractChoicesCompleter {
 
     @Override
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VmIpCompleter.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VmIpCompleter.java
index 3ee28fe..ce55d01 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VmIpCompleter.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VmIpCompleter.java
@@ -15,8 +15,11 @@
  */
 package org.onosproject.openstackvtap.cli;
 
-import org.apache.karaf.shell.console.Completer;
-import org.apache.karaf.shell.console.completer.StringsCompleter;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.karaf.shell.api.console.CommandLine;
+import org.apache.karaf.shell.api.console.Completer;
+import org.apache.karaf.shell.api.console.Session;
+import org.apache.karaf.shell.support.completers.StringsCompleter;
 import org.onlab.packet.IpAddress;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.net.Host;
@@ -29,12 +32,13 @@
 /**
  * VM IP completer.
  */
+@Service
 public class VmIpCompleter implements Completer {
 
     private static final String CIDR = "/32";
 
     @Override
-    public int complete(String buffer, int cursor, List<String> candidates) {
+    public int complete(Session session, CommandLine commandLine, List<String> candidates) {
         // Delegate string completer
         StringsCompleter delegate = new StringsCompleter();
 
@@ -47,6 +51,6 @@
             }
         }
 
-        return delegate.complete(buffer, cursor, candidates);
+        return delegate.complete(session, commandLine, candidates);
     }
 }
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VtapIdCompleter.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VtapIdCompleter.java
index c53098d..811b63d 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VtapIdCompleter.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VtapIdCompleter.java
@@ -15,8 +15,11 @@
  */
 package org.onosproject.openstackvtap.cli;
 
-import org.apache.karaf.shell.console.Completer;
-import org.apache.karaf.shell.console.completer.StringsCompleter;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.karaf.shell.api.console.CommandLine;
+import org.apache.karaf.shell.api.console.Completer;
+import org.apache.karaf.shell.api.console.Session;
+import org.apache.karaf.shell.support.completers.StringsCompleter;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.openstackvtap.api.OpenstackVtap;
 import org.onosproject.openstackvtap.api.OpenstackVtapService;
@@ -29,12 +32,13 @@
 /**
  * vTap ID completer.
  */
+@Service
 public class VtapIdCompleter implements Completer {
 
     private static final String VTAP_TYPE = "none";
 
     @Override
-    public int complete(String buffer, int cursor, List<String> candidates) {
+    public int complete(Session session, CommandLine commandLine, List<String> candidates) {
 
         OpenstackVtap.Type type = getVtapTypeFromString(VTAP_TYPE);
 
@@ -48,6 +52,6 @@
             strings.add(t.id().toString());
         });
 
-        return delegate.complete(buffer, cursor, candidates);
+        return delegate.complete(session, commandLine, candidates);
     }
 }
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VtapTypeCompleter.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VtapTypeCompleter.java
index 2784833..83c227e 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VtapTypeCompleter.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/VtapTypeCompleter.java
@@ -16,6 +16,7 @@
 package org.onosproject.openstackvtap.cli;
 
 import com.google.common.collect.Lists;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.cli.AbstractChoicesCompleter;
 
 import java.util.List;
@@ -23,6 +24,7 @@
 /**
  * vTap type completer.
  */
+@Service
 public class VtapTypeCompleter extends AbstractChoicesCompleter {
 
     @Override