The JRuby team has released JRuby 10, a major upgrade of the Ruby implementation on the Java Virtual Machine (JVM), ...

Java Flight Recorder further minimizes the harm to performance through the tabulation of data that is already maintained by the JVM, rather than implementing new mechanisms that track performance. For ...

For example, Groovy provides strong scripting features. Scala and Clojure solve various scalability issues the Java program runs into. And Kotlin greatly simplifies Android application development.