Carlspring, the trick is the implementation of the SSL connector: package and class name are modified after updates.
At version 6.1.x, the implementation was:
org.mortbay.jetty.security.SslSocketConnector
After 8.x, is:
org.eclipse.jetty.server.ssl.SslSocketConnector
Note that is also needed to include jetty-ssl dependency in your pom.xml.
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>7.0.0.pre5</version>
<configuration>
<connectors>
<connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">
<port>8080</port>
</connector>
<connector implementation="org.eclipse.jetty.server.ssl.SslSocketConnector">
<port>8443</port>
<keystore>src/test/resources/server.keystore</keystore>
<keyPassword>123456</keyPassword>
<password>123456</password>
</connector>
</connectors>
</configuration>
<dependencies>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-ssl</artifactId>
<version>7.0.0.pre5</version>
</dependency>
</dependencies>
</plugin>