tool generate SOAP message

[henry human]

Hi guys
I am looking for any JAVA or not JAVA tool(free command line Tool or well 
documented API/ framework..) to generate SOAP messages from a given WSDL. 
(it should be possible to call the tool or API from JAVA code).  Maybe someone 
has implemented such tool and can give a hint.
I am thankful for any help!
ciao..