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Illustrates that Resolv.getaddress appears to not work in JRuby 1.7.1.

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>rvm 1.9
>ruby -e "require 'resolv'; puts Resolv.getaddress ''"
>rvm jruby # 1.7.1
>ruby -e "require 'resolv'; puts Resolv.getaddress ''"
Resolv::ResolvError: no address for
getaddress at /Users/keithb/.rvm/rubies/jruby-1.7.1/lib/ruby/1.9/resolv.rb:93
getaddress at /Users/keithb/.rvm/rubies/jruby-1.7.1/lib/ruby/1.9/resolv.rb:43
(root) at -e:1
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