undefined method `call' for nil:NilClass about jruby-rack HOT 6 CLOSED

same error here with

file:/Users/libo/Sites/falck/pdf/WEB-INF/lib/jruby-rack-1.0.7.jar!/rack/handler/servlet.rb:19:in call': undefined methodcall' for nil:NilClass (NoMethodError)

from jruby-rack.

What does your rack configuration look like? I think your problem is with your application, though the error messaging could be better. Try running with Rack::Lint to see.

from jruby-rack.

I got the error a couple of times because Rack couldn't find my rackup script. For example, if you use a rackup.path in your web.xml, but the actual config.ru isn't where you said it was. Then DefaultRackApplicationFactory calls Rack::Handler::Servlet and when rackup is null b/c no config.ru was found, the app ends up as nil, and the error follows because you can't call methods on a nil object.

from jruby-rack.

So it ended up being a configuration error? I suppose the error messaging could be better. Can you suggest something?

from jruby-rack.

I think there is a "can't find rackup script" type of message in the log, but perhaps the thing to do is check if the app is null and if so, deliver a page that says your app didn't get set and some boilerplate on how to set it.

from jruby-rack.

Agreed. You or anyone else feel like writing that code :)?

from jruby-rack.