|  | <html> | 
|  | <head> | 
|  | <meta http-equiv="content-type" content="text/html; charset=UTF-8"> | 
|  | <title>Servlet Mappings, GWT Modules, and web.xml</title> | 
|  | </head> | 
|  | <body> | 
|  |  | 
|  | <p>GWT modules may declare one or more <code><servlet></code> | 
|  | tags. These define Java Servlets that implement the server-side | 
|  | component of a GWT-enabled web application.</p> | 
|  |  | 
|  | <p>Prior to GWT 1.6, these GWT module servlet tags controlled the set of | 
|  | servlets were actually instantiated during hosted mode. But as of GWT 1.6, this | 
|  | is no longer true.  Instead, the web application's <code>WEB-INF/web.xml</code> | 
|  | configuration file controls what servlets are instantiated. A GWT module | 
|  | specifies only what servlets are <i>expected</i>. | 
|  |  | 
|  | <p>During hosted mode startup, the set of expected servlets (from GWT module | 
|  | <code><servlet></code> tags) is validated against the set of actual | 
|  | servlets (from the <code>WEB-INF/web.xml</code>) and a warning is issued for | 
|  | each expected servlet which does not match an actual servlet. | 
|  |  | 
|  | </body> | 
|  | </html> |