Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
Whenever I would try to make an HTTPS connection with xwiki on Ubuntu 14.10. It turns out, /etc/ssl/certs/java/cacerts was not createdas described here https://github.com/docker-library/openjdk/issues/19
I had to run /var/lib/dpkg/info/ca-certificates-java.postinst configure and restart tomcat.
Maybe add this command to the xwiki package install process until this is fixed upstream?