In Java, the "write once, run everywhere" is true only if you are in some boundaries. Java Preferences API are a classic example of this false myth, since e.g.

In Java, the "write once, run everywhere" is true only if you are in some boundaries. Java Preferences API are a classic example of this false myth, since e.g. on MacOS it behaves differently than in Windows/Linux. And ever heard of Native Runtime? If you want to create a native runtime, you just need to do this on the target platform. So this is very odd to me. GoLang went much further, doing true cross compilation