Basically, Classmod is a Java framework for creating classes that can be modified at runtime.
For example, other applications or "modifications" can manipulate the classes by just providing own .class files.
There is no need for changing the original code and recompiling the modified classes.
Modifications to classes are just as easy as loading a library into the classpath and invoking some kind of initialization method there.
For more information, please refer to the wiki page.
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