GraalVM Native Image is an ahead-of-time compiler that generates native Java executables. These executables start very fast and use less CPU and memory. This makes Java in the cloud cheaper.

Developers working on server-side Java applications are typically interested in the compilation of servlets, deployment of JSP files, and deployment of HTML files, configuration files, or images.

Because GraalVM is the first compiler of its kind written completely in Java—a memory-safe language designed for productivity—unlike other compilers, it’s easy for developers to read and modify.

"Compiler #2" as it has been affectionately called is a compiler to turn normal Ruby classes into Java classes, so they can be constructed and called by normal Java code. When I asked for 1.3 ...