This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
The web service tools built into Eclipse Ganymede is the Axis tools.
Actually, you do not need any plugin to generate Java classes from a WSDL - an Ant script is enough.
Example of an Ant script that will generate client artifacts from a WSDL:
Modify the script to match your system. Create a directory named "wsimport_generated" in the root of the project.