Disable explain when using jruby because it's not supported. The patch for this support exist but for some reason still not included in latest release of the jdbc adapter. Reference: https://github.com/jruby/activerecord-jdbc-adapter/pull/206

Zeropaste::Application.routes.draw do
  resources :pastes, :only => [:show, :create], :path => '/'
  post 'pastes' => 'pastes#create', :format => /(json|xml|txt)/
  root :to => 'pastes#new'
end