FastR

"FastR is an implementation of the R Language in Java atop Truffle, a framework for building self-optimizing AST interpreters.

FastR is a GraalVM based implementation of the R language that provides significant improvements in the performance of R code, the embedding of the R execution engine into Java applications, and the ability to interface with other GraalVM and JVM languages including Python, Java, and Scala. FastR is also able to utilize the tooling support provided by the GraalVM ecosystem.

https://github.com/oracle/fastr

https://medium.com/graalvm/faster-r-with-fastr-4b8db0e0dceb