"""
So does that mean Java application servers are dead? In a docker world there’s really no need to ever hot deploy java code into a running java process in production any more. However that can be useful in development; being able to hot deploy code into a running instance. (Though to be fair you can do the same thing in any Java application with tools like JRebel; most IDE debuggers do the same trick too).

So I’d say that Java Application Servers are mutating into becoming more like frameworks that are baked into an immutable image that are then managed externally by the cloud (e.g. via kubernetes). In many ways the cloud (e.g. kubernetes and docker) takes over many of the features that Java application servers used to do; since rolling upgrades of new images is needed for all technologies (java/golang/nodejs/python/ruby et al).
"""
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