Are there any Zopistas with experience also of Java servlets/EJBs?

From my reading so far I get the impression that servlets/EJBs roughly correspond to Zope's products. What I'm not sure is whether any Java app servers have Zope's concept of having URL paths to object instances, or whether they only provide URLs to the servlets/EJBs themselves, with passed parameters being used instead to specify a particular instance?

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