После полутора лет тишины, вышел JRuby 0.7.
JRuby is a pure Java implementation of the Ruby interpreter
JRuby is free software released under a dual GPL/LGPL license.
JRuby is tightly integrated with Java to allow both to script any Java class and to embed the interpreter into any Java application.
Features:
* Working towards full compatibility with Ruby 1.8.1.
* Support for scripting Java classes and interfaces in JRuby.
* Bean Scripting Framework (BSF) support.
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