Bug#1065449: trapperkeeper-webserver-jetty9-clojure: FTBFS with default Java 21

[Vladimir Petko]

Dear Maintainers,

  Would it be possible to consider a merge request[1] that addresses this issue?

Best Regards,
 Vladimir.

 [1] 
https://salsa.debian.org/clojure-team/trapperkeeper-webserver-jetty9-clojure/-/merge_requests/1