Server mocking framework: Load a plugin that already has been loaded before unit test. Impossible?
Background
I'm a developer of a mocking framework, which is used to test plugins for minecraft servers. One of the main functionalities of that mocking framework is the ability to load plugin classes, which holds the initial methods triggered whenever the plugin is enabled.
Here comes one issue, when running a real minecraft server these plugins are loaded with separate classloaders, which means that every internal resource of each plugin will be isolated. This will not be the case for our mocking framework, as all plugins are loaded by the SystemClassLoader (or whatever the default java class loader is called). That means that if you're loading multiple plugins, then there is a possibility of a clash between internal file names.
Another issue is that the API we're using requires us to have a specific classloader for the plugin class. We're using ByteBuddy to deal with this. But it throws exceptions whenever plugin classes are defined as final.
The solution I'm searching for
Anyhow, that's the background for my problems. I'm therefore wondering if there's any way to load a class that already has been loaded and substitute all the reference of the old class to the new class. Or something similar.
From what I know, this is not possible (and probably should not be), but is there anything that would achieve a similar result?
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