JRuby
JRuby 9.4.3.0, на сайте с April 21, 2023 17:51
JRuby is an implementation of the Ruby language using the JVM.
It aims to be a complete, correct and fast implementation of Ruby, at the same time as providing powerful new features such as concurrency without a global-interpreter-lock, true parallelism, and tight integration to the Java language to allow you to use Java classes in your Ruby program and to allow JRuby to be embedded into a Java application.