I'd imagine most people here are just web developers and haven't used anything beside nodejs in a professional environment, so their first reaction to java is "oh, I have to restart the server everytime I change a web page? that's a pain".
Not saying it can't be done with java. Even android studio has a hot class swapping feature (I know it isn't JVM but as a proof of concept this exists)
Not saying it can't be done with java. Even android studio has a hot class swapping feature (I know it isn't JVM but as a proof of concept this exists)