Trouble with jruby-19mode on travis-ci


I am trying to get test suite for rubycas-client
(GitHub - rubycas/rubycas-client: Ruby client for Yale's Central Authentication Service protocol -- an open source enterprise single sign on system for web applications.) passing on travis under
jruby-19mode. It works under jruby-18mode, and it works under jruby
1.6.7 with --19 on my mac. Here’s a link to the failing build:
Home – Travis-CI

Anyone have any insight?