FW: Web service name syntax

["Melamud, Mikhail" <Mi...@ca.com>]

Can web service name contain special characters such as #, %,^, &,\? 
For example, using deployService() method I can create Axis wsdd as
follows: 
<service name="h%" provider="java:RPC">
<parameter name="methodName" value="*"/>
<parameter name="alias" value="h%Service"/>
<parameter name="scope" value="request"/>
<parameter name="className" value="wsbecho.EchoStruct"/> </service>

 but then url /somehost/somecontext/h%?wsdl throws HTTP 400 error. I understand that '%' has a special meaning in url, but 
/somehost/somecontext/h%25?wsdl would not work either ('%' is escaped here) 

Shouldn't Axis deployService() throw an exception here if it's not valid name? 

Or if it's a valid web service name why my url doesn't generate wsdl? 
Is any standard on What characters are allowed in Web service name? 
Thanks 
Mike