Clojurians Log v2

Does anyone know what leads to

{:cognitect.anomalies/category :cognitect.anomalies/fault, :cognitect.anomalies/message "org/eclipse/jetty/io/CyclicTimeouts$Expirable", :cognitect.http-client/throwable #error {
 :cause "org.eclipse.jetty.io.CyclicTimeouts$Expirable"
 :via
 [{:type java.lang.NoClassDefFoundError
   :message "org/eclipse/jetty/io/CyclicTimeouts$Expirable"
   :at [org.eclipse.jetty.client.http.HttpClientTransportOverHTTP newHttpDestination "HttpClientTransportOverHTTP.java" 54]}
  {:type java.lang.ClassNotFoundException
   :message "org.eclipse.jetty.io.CyclicTimeouts$Expirable"
   :at [jdk.internal.loader.BuiltinClassLoader loadClass "BuiltinClassLoader.java" 641]}]
 :trace

I have lost an hour on this - I have two projects with the same exact setup, one is working just fine, and the other keeps getting this error. Dependencies are the same wrt to Cognitect AWS