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IMHO, the language is the stronger point in all of these. I don't care if the JVM is well specified, this brings me nothing to my daily productivity. What is t

IMHO, the language is the stronger point in all of these. I don't care if the JVM is well specified, this brings me nothing to my daily productivity. What is the advantage of using Rhino on JVM against using native Ruby or Python? In Java, at least I know I will be very confortable doing automatic refactorings with Eclipse, which is the biggest advantage of Java against these other languages. Having coded a tool in Ruby with some good testing coverage, I still don't feel as safe to refactor as I was using Java.

aaroniba 19y ago
The JVM being well-specified is what allows other languages (like JavaScript) to be compiled to run on it. It also makes it easier to extend. Rhino on JVM has the advantages of having access to any java library you want (sun distributes many standard ones, and there are tons of other open-source ones on the internet). Another advantage is that the JVM does hotspot optimization which leads to speed improvements. Most other interpreted languages, such as Ruby or Python, are not as far along with their runtimes. As for Java vs. scripting languages, that's a matter of taste. In my experience the way to minimize bugs is to write less code, and I explained above why Java programs tend to be verbose, so I believe the benefits of terseness in scripting languages outweigh the benefits of static typing in Java.