diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullDevice.java b/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullDevice.java
index dc1ff92..809d90d 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullDevice.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullDevice.java
@@ -15,8 +15,8 @@
  */
 package org.onosproject.provider.nil.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.onlab.util.Tools;
 import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
@@ -60,7 +60,7 @@
     String locType = GEO;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         NullProviders service = get(NullProviders.class);
         NetworkConfigService cfgService = get(NetworkConfigService.class);
 
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullHost.java b/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullHost.java
index d079b23..682496b 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullHost.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullHost.java
@@ -17,8 +17,8 @@
 package org.onosproject.provider.nil.cli;
 
 import com.google.common.collect.ImmutableSet;
-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.onlab.packet.IpAddress;
 import org.onlab.util.Tools;
 import org.onosproject.net.ConnectPoint;
@@ -65,7 +65,7 @@
     String locType = GEO;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         NullProviders service = get(NullProviders.class);
         NetworkConfigService cfgService = get(NetworkConfigService.class);
 
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullHosts.java b/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullHosts.java
index c9b9301..b8618e0 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullHosts.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullHosts.java
@@ -16,8 +16,8 @@
 
 package org.onosproject.provider.nil.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.onlab.packet.IpAddress;
 import org.onlab.util.Tools;
 import org.onosproject.net.ConnectPoint;
@@ -69,7 +69,7 @@
 
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         NullProviders service = get(NullProviders.class);
         NetworkConfigService cfgService = get(NetworkConfigService.class);
 
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullLink.java b/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullLink.java
index 72e1781..f0bac10 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullLink.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/cli/CreateNullLink.java
@@ -16,9 +16,9 @@
 
 package org.onosproject.provider.nil.cli;
 
-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.Option;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Link;
 import org.onosproject.provider.nil.CustomTopologySimulator;
@@ -48,7 +48,7 @@
     private boolean unidirectional = false;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         NullProviders service = get(NullProviders.class);
 
         TopologySimulator simulator = service.currentSimulator();
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullControlCommand.java b/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullControlCommand.java
index 0b3fbe3..c901a6a 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullControlCommand.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullControlCommand.java
@@ -15,8 +15,8 @@
  */
 package org.onosproject.provider.nil.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.cfg.ComponentConfigService;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.provider.nil.NullProviders;
@@ -41,7 +41,7 @@
     String topoShape = null;
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         ComponentConfigService service = get(ComponentConfigService.class);
         // If there is an existing topology; make sure it's stopped before restarting
         if (cmd.equals(START)) {
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullDeviceCommand.java b/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullDeviceCommand.java
index 6b463f6..6f88be8 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullDeviceCommand.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullDeviceCommand.java
@@ -15,8 +15,8 @@
  */
 package org.onosproject.provider.nil.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.net.DeviceId;
 import org.onosproject.provider.nil.NullProviders;
@@ -41,7 +41,7 @@
 
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         NullProviders service = get(NullProviders.class);
         DeviceId deviceId = DeviceId.deviceId(id);
 
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullLinkCommand.java b/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullLinkCommand.java
index 1b9729c..8d3314d9 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullLinkCommand.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/cli/NullLinkCommand.java
@@ -15,8 +15,8 @@
  */
 package org.onosproject.provider.nil.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.net.ConnectPoint;
 import org.onosproject.provider.nil.NullProviders;
@@ -45,7 +45,7 @@
 
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         NullProviders service = get(NullProviders.class);
 
         try {