HTTP Status 400 - HTTP method GET is not supported by this URL

[Esteban]

Thanks to Scott Blum's and Henry's valuable help I managed to get an
application running both in 'hosted' and 'web' mode, also able to
enter debugging mode within Eclipse. ()

Then built a .war file following instructions from other topics,
deployed it into Tomcat, and got the message mentioned in the 'Subject'

Structure of war file:
---------------------------------------------------------------------------------------
/META-INF (containing a dummy MANIFEST.MF)
/WEB-INF
classes/ (all client, server and helper classes)
lib/ (the stripped version of gwt_user.jar without the servlet
classes)
web.xml ( with <servlet-class>mypkg.MyImpl</servlet-class>)

+everything that was in the www directory built by the XXX-compile.cmd
---------------------------------------------------------------------------------------

Maybe something in the configuration of my Tomcat ? Something missing
in my warfile ?

Just in case: here's the ant xml file contents:
---------------------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<project name="Packaging Generator" default="_packaging_generation_">
<target name="_packaging_generation_" depends="N65540"/>
<target name="N65540" description="XXX.war">
<jar destfile="XXX.war">
<zipfileset dir="src/WEB-INF" prefix="WEB-INF" includes="*.xml"
/>
<zipfileset dir="www/ar.com.tecnored.webapp.XXX" includes="**.*"
/>
<zipfileset dir="bin" prefix="WEB-INF/classes"
includes="**/*.class"/>
<zipfileset dir="lib" prefix="WEB-INF/lib" includes="**/*"/>
</jar>
</target>
</project>
---------------------------------------------------------------------------------------

Any ideas ?

Thanks

[Esteban]

Oops: Here's the full page output:
---------------------------------------------------------------------------------------

Apache Tomcat/5.5.16 - Error report

HTTP Status 400 - HTTP method GET is not supported by this URL
Status report
message
HTTP method GET is not supported by this URL
description
The request sent by the client was syntactically incorrect (HTTP
method GET is not supported by this URL).
---------------------------------------------------------------------------------------