Using vaadin add-on "EasyUpload" - compile widgetset with maven - maven

Question

I'm new of vaadin and this is the first time that I try to use an add-on EasyUpload add-on
I'm using maven to build my project, and i modified my pom.xml in ths way:
<project>
<modelVersion>4.0.0</modelVersion>
<artifactId>My-vaadin-webapp</artifactId>
<packaging>war</packaging>
<!-- Add-On Repository -->
<repositories>
<repository>
<id>vaadin-addons</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.vaadin.addon</groupId>
<artifactId>easyuploads</artifactId>
<version>7.0.1</version>
</dependency>
</dependencies>
</project>
But when to try
MultiFileUpload
i get the following result:
I read the I should compile my widget-set, but I don't use a custom widget-set, I'm using a default widget-Set.
This is my web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app>
<display-name>MyApp</display-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>com.myApplication.AutowiringApplicationServlet</servlet-class>
<init-param>
<description>Vaadin UI class to use</description>
<param-name>UI</param-name>
<param-value>com.myApplication.Application</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>VaadinApplication</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
Where am I doing wrong?
How to can I do to solve my problem?

Answer 1

Create a widgetset in the src/main/resources folder under an arbitrary package (x.y for example). Name it AppWidgetSet.gwt.xml for example.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.5.1//EN" "http://google-web-toolkit.googlecode.com/svn/tags/2.5.1/distro-source/core/src/gwt-module.dtd">
<module>
<inherits name="com.vaadin.DefaultWidgetSet" />
<set-property name="user.agent" value="safari"/>
<inherits name="org.vaadin.easyuploads.Widgetset" />
</module>
Annotate your custom UI with the following:
#Widgetset("x.y.AppWidgetSet")
The "inherits" part is autogenerated by the mvn vaadin:update-widgetset goal based on the dependencies of your pom. Since I included the multifileupload here you don't need to call it this time.
Do a mvn vaadin:compile.
Refresh your project and your server.

Answer 2

When you use addon widgets, you will have to recompile the whole widget set.
Depending on your maven targets there should exist one such...