And I get this in JRuby
```
[1] pry(main)> RUBY_VERSION
=> "2.5.3"
[2] pry(main)> JRUBY_VERSION
=> "9.2.6.0"
[3] pry(main)> Encoding.default_internal
=> nil
[4] pry(main)> Encoding.default_internal = "EUC-JP"
=> "EUC-JP"
[5] pry(main)> w = "なまえ"
=> "\u306A\u307E\u3048"
[6] pry(main)> 
[7] pry(main)> w.en
w.encode      w.encode!     w.encoding    w.end_with?   w.enum_for    
[7] pry(main)> w.encod
w.encode     w.encode!    w.encoding   
[7] pry(main)> w.encoding
=> #<Encoding:UTF-8>
[8] pry(main)> puts w
なまえ
=> nil
```