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.
Do the two servlets have the same class name and package name? They can't.
If it's just two Servlets with the same name, but different package/folder names, then you can give them two different names in the web.xml file, and have appropriate name point to the appropriate Servlet.