This is probably a simple question.
When I am using jruby how do I no which syntax jruby is using 1.8.7 or
1.9.2 can i switch between them (disregarding the irb). Became
concerned when I notice the gems installed with jruby -S gem install
some_gem were installiing to 1.8.
Does jruby use 1.8.7 by default? If yes how can I switch it to 1.9.2?