Add JVM article on premature finalisation #114
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Turns out this is still a real problem in Java.
They provide a method (like C#'s keepAlive API) for telling the collector that an object is still reachable by the mutator [1].
[1] https://docs.oracle.com/javase/9/docs/api/java/lang/ref/Reference.html#reachabilityFence-java.lang.Object-