Gemfile in elasticsearch-transport-7.5.0 vs Gemfile in elasticsearch-transport-7.6.0.pre

@@ -5,21 +5,25 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in elasticsearch-transport.gemspec
 gemspec
 
-if File.exist? File.expand_path("../../elasticsearch-api/elasticsearch-api.gemspec", __FILE__)
-  gem 'elasticsearch-api', :path => File.expand_path("../../elasticsearch-api", __FILE__), :require => false
+if File.exist? File.expand_path('../../elasticsearch-api/elasticsearch-api.gemspec', __FILE__)
+  gem 'elasticsearch-api', path: File.expand_path('../../elasticsearch-api', __FILE__), require: false
 end
 
-if File.exist? File.expand_path("../../elasticsearch-extensions/elasticsearch-extensions.gemspec", __FILE__)
-  gem 'elasticsearch-extensions', :path => File.expand_path("../../elasticsearch-extensions", __FILE__), :require => false
+if File.exist? File.expand_path('../../elasticsearch-extensions/elasticsearch-extensions.gemspec', __FILE__)
+  gem 'elasticsearch-extensions', path: File.expand_path('../../elasticsearch-extensions', __FILE__), require: false
 end
 
-if File.exist? File.expand_path("../../elasticsearch/elasticsearch.gemspec", __FILE__)
-  gem 'elasticsearch', :path => File.expand_path("../../elasticsearch", __FILE__), :require => false
+if File.exist? File.expand_path('../../elasticsearch/elasticsearch.gemspec', __FILE__)
+  gem 'elasticsearch', path: File.expand_path('../../elasticsearch', __FILE__), require: false
 end
 
 group :development do
   gem 'rspec'
-  gem 'pry-nav'
+  if defined?(JRUBY_VERSION)
+    gem 'pry-nav'
+  else
+    gem 'pry-byebug'
+  end
 end