In the pom of the released jruby-core 1.7.9 there is a snapshot dependency on joni:
thanx for reporting. the next release will come around new year. we make
sure it comes clean ;)
I think you can exclude that dependency and add it explicitly. I let you
know once the joni artifact is released.
joni-2.1.1 reached maven central - maybe such a workaround helps until the next release.
Thanks. I'll add it to the dependencyManagement section in my project.