I'm such an idiot!
It never occurred to me to try the damned thing. Actually, it did, but I was using the wrong URL. That WARNING message threw me off. The Web Service works, though.
08:40:10,694 INFO [TomcatDeployment] deploy, ctxPath=/jbsv-ejb
08:40:10,851 WARNING [config] Unable to process deployment descriptor for context '/jbsv-ejb'
08:40:10,851 INFO [config] Initializing Mojarra (1.2_12-b01-FCS) for context '/jbsv-ejb'
Still, the warning is off-putting. Is it spurious? I still wonder why it occurs at all and what it means.
And what is Mojarra?