In order to build jumper, you must have Firefox installed with a profile for WebDriver/Selenium.
You will need to create a Firefox profile called "WebDriver". Instructions for doing this can be found here. You should hit the running server and add a permanent exception for your self-signed certificate. This will allow the Selenium tests to run without error. (I realize there may be a bootstrapping problem here...I haven't run into it myself, so I haven't solved it either.) I also add the following key to the configuration, in order to keep Firefox from going into offline mode and failing my tests when I'm not connected to a network: network.manage-offline-status. If you set it to false, Firefox won't put you in offline mode.
In order to run jumper in Tomcat, you need to have SSL setup. A keystore is provided in the repository:
Add the following to conf/server.xml with the keystoreFile modified for your environment.
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
maxThreads="150" scheme="https" secure="true" keystorePass="password"
keystoreFile="/Users/oliver/devel/jumper/integration-test/src/main/resources/server.keystore"
clientAuth="false" sslProtocol="TLS" />