spring - the rpc call doesn't workd after adding spring4gwt -


to integrate spring in gwt application added spring4gwt , followed tutorial in simplerpcexample. doesn't work, in configuration , code seems ok.

so put in application context scan servlets 

<context:component-scan base-package="com.protid.prosa.server" />

i tagged saservice interface @remoteservicerelativepath("sab/travaux") , saserviceimpl service @service("travaux")

the user interface loaded rpc call doesn't work. can body tell me mistake did, or best approach integer spring gwt. thank you,

and how added servlet web.xml 

<servlet>      <servlet-name>springgwtremoteserviceservlet</servlet-name>      <servlet-class>org.spring4gwt.server.springgwtremoteserviceservlet</servlet-clas‌​s> </servlet>  <servlet-mapping>      <servlet-name>springgwtremoteserviceservlet</servlet-name>      <url-pattern>/prosa/sab/*</url-pattern>  </servlet-mapping>


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