In the service stub source code files generated by wsdl2java, for at least the ADB and JAXBRI databindings, the comment blocks at the top of the file seem mis-formatted. The very first comment before the "package" statement is formatted as a "/** ... /" javadoc comment. It shouldn't be; javadocs don't apply to files as a whole. And the comment right before the top-level class is a regular "/ ... */" comment; it should probably be a javadoc block.
Grab a simple WSDL like HelloWorld.wsdl from http://oreilly.com/catalog/webservess/chapter/ch06.html and do:
wsdl2java -uri HelloWorld.wsdl -s -p hello.adb -d adb
wsdl2java -uri HelloWorld.wsdl -s -p hello.jaxbri -d jaxbri