https://javaspecialists.teachable.com/courses/dynamic-proxies-in-java/lectures/14580111
3.1.1. IllegalArgumentException from Wrong ClassLoader | JavaSpecialis
Don't repeat yourself. The mantra of the effective Java programmer. Dynamic proxies get us there quicker.
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https://javaspecialists.teachable.com/courses/java-entwurfsmuster-deutsch/lectures/38191550
15.1. Acyclic Visitor (Azyklischer Besucher) Vorlesung | JavaSpecialis
acyclicvisitorbesuchervorlesung