Indeed, I don&#x27;t have a good understanding of the JVM ecosystem. However:<p>Google is tentatively on the hook for $9B for... essentially implementing its own JVM... or something. Doesn&#x27;t matter to me, end result is that the future of Java on Android is far from clear. They&#x27;re allegedly looking into using Swift as the next generation Android language.<p>RoboVM, one of the better &#x2F; more popular ways to write iOS apps in Java was close-sourced, then acquired by Xamarin, then Microsoft, then shut down.<p>Oracle charges licensing fees for using JVM in embedded devices and kiosks.<p>To summarize, there&#x27;s an incredible amount of tools and libraries for Java, but I don&#x27;t like where Java&#x27;s mobile story is going in general.<p>As far as I know the number of viable JVM machines you could build a business on is maybe... 5 at most? They&#x27;re all experimental and&#x2F;or abandoned.<p>Meanwhile, node &#x2F; JS &#x2F; ASM.js &#x2F; Emscripten and friends are only getting better, faster and more widespread outside of the web.