An update for Apache Tmocat recently pushed into bodhi seems to break
CA instance spawning in a spectacular way. It seems that the update
once again breaks the loading of Java classes during Dogtag server
I gave the package negative karma and I suggest for you to do the same
until the issue is resolved.
As a workaround you can either disable updates-testing or use:
dnf downgrade --allowerasing tomcat
to downgrade tomcat and dependencies to version 8.0.36-2.fc24 which works.
Manage your subscription for the Freeipa-devel mailing list:
Contribute to FreeIPA: http://www.freeipa.org/page/Contribute/Code