D:\jruby-9.0.0.0.rc1\bin>jruby -S gem sources -a https://ruby.taobao.org/ https://ruby.taobao.org/ added to sources

D:\jruby-9.0.0.0.rc1\bin>jruby -S gem install rails ERROR: While executing gem ... (Gem::RemoteFetcher::FetchError) Errno::ECONNREFUSED: Connection refused - Connection refused (https://api.ru bygems.org/quick/Marshal.4.8/rails-4.2.1.gemspec.rz)

D:\jruby-9.0.0.0.rc1\bin>jruby -S gem install rails ERROR: While executing gem ... (Gem::RemoteFetcher::FetchError) Errno::ECONNREFUSED: Connection refused - Connection refused (https://api.ru bygems.org/quick/Marshal.4.8/rails-4.2.1.gemspec.rz)

java 狗一只， 另外我在 java 中运行 activerecord，出了一个这个警告，怎么去掉呢？

io/console not supported; tty will not be manipulated

顺便 问下 jruby 的 gem 和 ruby 的 gem 通用吗？像 rails.还是有单独的版本。