There is nothing you can totally at the jetty level as the servlet spec does not allow jetty to interrupt a dispatched thread.
Depending on you application, you could also try writing a simple filter that remembers the thread that it passed on through the chain and it can attempt to apply a timeout and do the interrupt. If your handling is interruptible, this simple approach could work.
But many are not interruptible. However, you
could perhaps look at async servlets - using request.startAsync(),
Then you can disassociate the thread handling the response from the
thread that generates the response.