Hrm... Well, the log doesn't show any error messages, but here it is:
2021-10-20 09:26:58.234:INFO::main: Logging initialized @154ms to org.eclipse.jetty.util.log.StdErrLog
File.DirApp = D:\B4J_Projects\ServerHelloWorld\Objects
2021-10-20 09:26:58.347:INFO
ejs.Server:main: jetty-9.4.z-SNAPSHOT; built: 2018-05-03T15:56:21.710Z; git: daa59876e6f384329b122929e70a80934569428c; jvm 11.0.1+13
2021-10-20 09:26:58.377:INFO
ejs.session:main: DefaultSessionIdManager workerName=node0
2021-10-20 09:26:58.377:INFO
ejs.session:main: No SessionScavenger set, using defaults
2021-10-20 09:26:58.378:INFO
ejs.session:main: node0 Scavenging every 600000ms
2021-10-20 09:26:58.382:INFO
ejsh.ContextHandler:main: Started o.e.j.s.ServletContextHandler@6356695f{/,file:///D:/B4J_Projects/ServerHelloWorld/Objects/www/,AVAILABLE}
2021-10-20 09:26:58.385:INFO
ejs.AbstractNCSARequestLog:main: Opened D:\B4J_Projects\ServerHelloWorld\Objects\logs\b4j-2021_10_20.request.log
2021-10-20 09:26:58.528:INFO
ejs.AbstractConnector:main: Started ServerConnector@6c6cb480{HTTP/1.1,[http/1.1]}{0.0.0.0:80}
2021-10-20 09:26:58.651:INFO
ejus.SslContextFactory:main: x509=X509@2118cddf(mindtorque.net (certcloud rsa tls ca),h=[mindtorque.net],w=[]) for SslContextFactory@17a7f733[provider=null,keyStore=file:///D:/B4J_Projects/ServerHelloWorld/Objects/jetty.keystore,trustStore=null]
2021-10-20 09:26:58.726:INFO
ejs.AbstractConnector:main: Started ServerConnector@156b88f5{SSL,[ssl, http/1.1]}{0.0.0.0:443}
2021-10-20 09:26:58.726:INFO
ejs.Server:main: Started @651ms
Server started
Not exactly revealing (at least not to me...), that's why I'd like to try including what isn't supposed to be required and see if it makes a difference.