The Z Garbage Collector, also known as ZGC, is a scalable low latency garbage collector designed to meet the following goals:
TornadoVM is a plugin to the JDK that allows programmers to run applications on heterogeneous hardware. Currently, TornadoVM can run on multi-core CPUs, GPUs and FPGAs.
https://www.infoq.com/articles/java-performance-tornadovm/