wsdl not generated for my service

[Rebhi Baraka]

After I deployed a service to axis1.1,  I tried to generate the wsdl 
from the service url (by appending ?wsdl) but I received nothing.
The service name appears among the other services in the axis view 
window. pressing (wsdl) does not give the wsdl.

But using java2wsdl I can get the wsdl of the service.

What might be the  reason for not generating the wsdl from the url of 
the service?

my deploy.wsdd is:

<?xml version="1.0" encoding="UTF-8"?>
<deployment xmlns="http://xml.apache.org/axis/wsdd/";
           xmlns:java="http://xml.apache.org/axis/wsdd/providers/java";>
<service name="GapIntegrator" provider="java:RPC">
 <parameter name="className" value="gapIntegrator"/>
 <parameter name="methodName" value="*"/>
 <typeMapping  qname="om:OMOBJ" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMObject"
               
serializer="at.ac.uni_linz.risc.openmath.util.OMObjectSerializerFactory"
                   
deserializer="at.ac.uni_linz.risc.openmath.util.OMObjectDeserializerFactory"
               encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>

 <beanMapping  qname="om:OMA" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMApplication"/>
 <beanMapping  qname="om:OMI" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMInteger"/>
 <beanMapping  qname="om:OMBIND" 
xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMBinding"/>
 <beanMapping  qname="om:OMV" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMVariable"/>
 <beanMapping  qname="om:OMF" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMFloat"/>
 <beanMapping  qname="om:OMS" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMSymbol"/>
 <beanMapping  qname="om:OMSTR" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMString"/>
 <beanMapping  qname="om:OMATTR" 
xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMAttribution"/>
 <beanMapping  qname="om:OME" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMError"/>
 <beanMapping  qname="om:OMB" xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMByteArray"/>
 <beanMapping  qname="om:OMBVAR" 
xmlns:om="http://www.openmath.org/OpenMath";
               
languageSpecificType="java:nl.tue.win.riaca.openmath.lang.OMVariable"/>

</service>
</deployment>
Thanks,
Rebhi.