Ruby Invokedynamic Projects

JRuby

1 26 3,829 9.9 Ruby

JRuby, an implementation of Ruby on the JVM

Project mention: Java at 30: The Genius Behind the Code That Changed Tech | news.ycombinator.com | 2025-05-16

Another way to look at it based on coming across it in enterprise:
How did he build something adopted by so many enterprises?
It does some things at scale very well and has been afforded the performance improvements of very smart people for 30y.
It’s not to say the language isn’t verbose, one of my favourite features was the ability to write code in other languages right inside the a Java app pretty well in-line by using the JVM, thanks to JSR-223.
It was possible to write Ruby or Python code via Jruby or Jython and run it in the JVM.
https://www.jython.org/
https://www.jruby.org/
https://docs.oracle.com/javase/8/docs/technotes/guides/scrip...
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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).