-import org.xwalk.runtime.extension.api.messaging.MessagingManager;
-import org.xwalk.runtime.extension.api.messaging.MessagingSmsManager;
-import org.xwalk.runtime.extension.XWalkExtension;
-import org.xwalk.runtime.extension.XWalkExtensionContext;
+import org.xwalk.core.extension.api.messaging.MessagingManager;
+import org.xwalk.core.extension.api.messaging.MessagingSmsManager;
+import org.xwalk.core.extension.XWalkExtension;
+import org.xwalk.core.extension.XWalkExtensionContext;