One of the latest fashions in the Java world is GraalVM. For someone who has been around, I still remember the "Write once, run anywhere" slogan of Java virtual machine. Apparently, the wheel has spun back, now people want to write native code in Java, which has to be compiled to different machine codes in different platforms. The driving forces for this change may include the often lamented slow startup time of Java programs. For the brave new world of serverless functions, a quick starting pro...