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Asked: 2026-06-12T12:10:03+00:00

For exercise purpose I’m making an application using GWT which consists of a login

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For exercise purpose I’m making an application using GWT which consists of a login form. While running it gives an error

Loading modules com.logvin.LoginForm

[ERROR] Element ‘servlet’ beginning on line 19 is missing required attribute ‘path’

[ERROR] Failure while parsing XML

I am using GWT-RPC and checking if the given username and password is correct or not. I’ve made few changes in the xml file which are:

entry-point class='com.logvin.client.LoginForm'/>   
<servlet> path="/LoginForm" class="com.logvin.gwt.server.GreetingServiceImpl"/>  
  <servlet> 
   <servlet-name>GreetingServiceImpl</servlet-name> 
   <servlet-class>com.logvin.server.GreetingServiceImpl</servlet-class>
  </servlet> 
<servlet-mapping> 
 <servlet-name>GreetingServiceImpl</servlet-name> 
 <url-pattern>/LoginForm</url-pattern>    
</servlet-mapping>

Why i’m getting this error again?

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1 Answer

  1. Editorial Team

    You’re mixing up two XML dialects.

    All those <servlet> elements should go into your WEB-INF/web.xml file, that tells the servlet container (server where you’ll deploy your app) how to serve your servlets.

    The *.gwt.xml file (GWT module) is about telling the GWT compiler (see: compile-time, not runtime) how to compile your code: where to start when loading the app (the entry-point), which classes are client-side (will be compiled to JavaScript, others –server-side only– have to be excluded), which GWT modules to import (inherits), etc.

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