Java and Web Services Primer
http://www.onjava.com/pub/a/onjava/2001/08/07/webservices.html?page=1
Building Web Services with Java: SOAP
http://www.informit.com/isapi/product_id~%7B94B98023-077A-426A-8024-9608037EE420%7D/element_id~%7B8A409D81-D50E-4E52-8361-C024DF41AF20%7D/st~%7B399255CA-3082-4A7D-9265-8679CA34FA00%7D/content/articlex.asp