blackdrag commented on issue #968: Fixed the Reference of the metaclass in ClassInfo.java to use a Weak… URL: https://github.com/apache/groovy/pull/968#issuecomment-511848762 From my POV this is no solution. We are using soft references, because in the past a weak reference gave the class free too fast leading to the runtime constantly recreating the meta class and thus to horrible performance. Also just using a SoftReference is not supposed to prevent the class to be unloaded. There are JVM configurations that behave like this though. Of course @NecOnIce is fully right when he says that the current configuration leads the JVM to use up all memory before anything is freed. Better would be a system in which we count how often we create the meta class and then maybe go with the strategy of creating first a weak reference and after a threshold has been reached to change it to a soft reference... just as an idea
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