Just like the Graal compiler, Substrate VM is written in the Java programming language and AOT-compiled by GraalVM Native Image into native code! Thanks to AOT compilation and heap snapshotting ...

The Graal project originates in Oracle Labs and is not part of OpenJDK. Its GraalVM Native Image is a Java AOT compiler that produces native executables today. They have four advantages over Java ...

resulting in much faster compilation times. Native Image AOT-compiles Java code to a standalone executable, known as a native image. Depending on the size and complexity of the application being ...

Compilers often translate source code for a high-level language, such as C++, to object code for the current computer architecture ... (AOT) compiler when building the executable image.