Ok, since jetty-9.0 it is no longer possible to configure a https connector directly in the pom.xml: you need to use jetty xml config files to do it.
I am new to exchange ,so excuse my code copy/paste.
jetty.xml
<New id="httpConfig" class="org.eclipse.jetty.server.HttpConfiguration">
<Set name="secureScheme">https</Set>
<Set name="securePort"><Property name="jetty.secure.port" default="8443" /></Set>
<Set name="outputBufferSize">32768</Set>
<Set name="requestHeaderSize">8192</Set>
<Set name="responseHeaderSize">8192</Set>
<Set name="sendServerVersion">true</Set>
<Set name="sendDateHeader">false</Set>
<Set name="headerCacheSize">512</Set>
<!-- Uncomment to enable handling of X-Forwarded- style headers
<Call name="addCustomizer">
<Arg><New class="org.eclipse.jetty.server.ForwardedRequestCustomizer"/>
</Arg>
</Call>
-->
</New>
Look here, for whole bunch of xml's and if it is helpful please check my answer as correct