# Yajb breaks when i upgrade to rails 1.2 **URL:** \ **Category:** Rails\ **Created:** [April 12, 2007, 4:44pm UTC](https://www.ruby-forum.com/t/yajb-breaks-when-i-upgrade-to-rails-1-2/91821 "2007-04-12T16:44:28Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![stewbawka](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a9adbd/32.png) [@stewbawka](https://www.ruby-forum.com/u/stewbawka)\ **Post date:** [April 12, 2007, 4:44pm UTC](https://www.ruby-forum.com/t/yajb-breaks-when-i-upgrade-to-rails-1-2/91821/1 "2007-04-12T16:44:28Z")
My awesome java bridge solution has been rendered useless when i upgrade my rails. i’ve frozen rails to the old version for now, but am in desperate need of a solution. details: worked fine before, but since updating rails yajb messes up the routing of my rails app AND breaks activesupport. I’ve heard a couple people crying about this problem after doing some googling, but i haven’t heard any solutions. is it a problem with yajb (which devel has unfortunately halted) or is it a problem with the new version of rails? I tried rjb before, but i was getting some bizarre results from calling some java api… it is also a pain to use because you have to declare your objects types by pointing it to the specific library. and calling overloaded methods is a huge pain in the ass. How is jruby coming along? i was considering this a while back when i first started into this project, but heard that it isn’t really ready for running rails (especially beyond 1.2)… I also tried putting my yajb stuff in a BackgrounDRB worker… i learned some cool BackgroundDRB stuff in the process, but as soon as i started trying to add in the yajb stuff it broke! HELP! Stuart ---
**Author:** ![stewbawka](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a9adbd/32.png) [@stewbawka](https://www.ruby-forum.com/u/stewbawka)\ **Post date:** [April 12, 2007, 7:16pm UTC](https://www.ruby-forum.com/t/yajb-breaks-when-i-upgrade-to-rails-1-2/91821/2 "2007-04-12T19:16:47Z")
jRuby trunk is at the stage where you can, in principle, run a Rails application on it. It’s somewhat slower than CRuby (not drastically so), and you may hit a couple of bugs in the not-so-obvious corners. It’s a very active project right now, with some people working on it full time, and the developers maillist traffic approaching Rails-talk levels, so bugs get fixed pronto 🙂 If I were you, I’d give it a try now (to make sure that any bugs you may care about get spotted and fixed before 1.0 release), and expect to roll it out to production some time in June. – Alex ---
**Author:** ![stewbawka](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a9adbd/32.png) [@stewbawka](https://www.ruby-forum.com/u/stewbawka)\ **Post date:** [April 12, 2007, 9:53pm UTC](https://www.ruby-forum.com/t/yajb-breaks-when-i-upgrade-to-rails-1-2/91821/3 "2007-04-12T21:53:06Z")
thanks for the reply… i think i will try out jruby very soon. right now i’m on a tight deadline and am pushing ahead with yajb with frozen rails. nice to know that at least jruby is being actively developped unlike yajb and rjb. so does anybody know what the deal is with yajb and new versions of rails? should i give up? Stuart On Apr 12, 2:15 pm, “Alexey V.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![stewbawka](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a9adbd/32.png) [@stewbawka](https://www.ruby-forum.com/u/stewbawka)\ **Post date:** [April 12, 2007, 10:15pm UTC](https://www.ruby-forum.com/t/yajb-breaks-when-i-upgrade-to-rails-1-2/91821/4 "2007-04-12T22:15:09Z")
Sounds to me like you’ve already made the right decision. The Rudy on Rails team has no obligation to ensure that changes to Rails don’t break third party add-ons or plug-ins. It’s completely up to the plug- in developer to keep up with Rails. They sure don’t want to hold back Rails development to support everyone’s plug-ins. This is the case with any foundational operating environment. It’s up to the developer to test their application, and dependencies to plug- ins, throughly before adopting a new framework version. And if dependent plug-ins are not supporting the new framework, then you must continue using the older framework version. If that plug-in’s development has halted, it’s time to start shopping for other options. I do agree that if you are dependent on Java then JRuby will be your best bet for the future.