I'm not aware of anyone using GraalVM for its language interoperability in production. However, it's used by GraalVM languages internally for supporting things

I'm not aware of anyone using GraalVM for its language interoperability in production. However, it's used by GraalVM languages internally for supporting things like C extensions and FFIs. So far, there's been a lot of interest in the performance improvements that the Graal compiler provides [1] and GraalVM Native Image [2], the toolchain that allows the compilation of Java apps and Truffle languages into binaries. But, there's a lot more you can do with GraalVM [3]. [1] http://www.ssw.uni-linz.ac.at/Research/Papers/Stadler14/Stadler2014-CGO-PEA.pdf http://www.ssw.uni-linz.ac.at/Research/Papers/Stadler14/Stad... [2] https://www.graalvm.org/docs/reference-manual/native-image/ https://www.graalvm.org/docs/reference-manual/native-image/ [3] https://www.graalvm.org/docs/why-graal/ https://www.graalvm.org/docs/why-graal/