--- concurrent-ruby-git-b47d29412.old/concurrent-ruby.gemspec
+++ concurrent-ruby-git-b47d29412/concurrent-ruby.gemspec
@@ -15,9 +15,7 @@
   s.date             = Time.now.strftime('%Y-%m-%d')
   s.files            = [*Dir['lib/concurrent-ruby/**/*.rb'] & git_files,
                         *Dir['ext/concurrent-ruby/**/*'] & git_files,
-                        'Rakefile',
-                        'Gemfile',
-                        'lib/concurrent-ruby/concurrent/concurrent_ruby.jar'
+                        'Rakefile', 'Gemfile'
   ]
   s.extra_rdoc_files = Dir['README*', 'LICENSE*', 'CHANGELOG*']
   s.require_paths    = ['lib/concurrent-ruby']