[jruby-user] Java 8 and Invoke Dynamic on Heroku

John Joseph Bachir <[email protected]> Tue, 17 Mar 2015 22:13:24 -0400

Newsgroups	gmane.comp.lang.jruby.user
Message-ID	<CAOf2Z5svMrw2UEa6O+My_icvr+gi83bmyvgTMqAQ2QWsJaOA+g@mail.gmail.com>

My app on Heroku was previously on cedar with Java 7. I just updated to
cedar-14 and Java 8.

One thing I was wary of was big performance problems because of invoke
dynamic being set to true when JRuby detected Java 8, as described in these
issues:

https://github.com/jruby/jruby/issues/1858
https://github.com/jruby/jruby/issues/1569

But I haven't seen any problem so far. Maybe for some reason invoke dynamic
is actually still off for me? Is there a way I check this at runtime in irb?

John