[basex-talk] Exhausting PermGen space when using xar extensions w/ Java modules?

Howdy -- I'm occasionally getting the following after a BaseX instance has been up and accepting queries for some time: [XPST0017] Class cannot be initialized: PermGen space. As I understand it, PermGen space is used during classloading. I'm using a Java extension (packaged in a xar); as BaseX has a fair bit of custom code around classloading, this seems the obvious first place to start looking. That said -- has anyone already seen this? (By the way -- without looking at the code, I would expect new classloading to only happen if the repo holding this plugin is being uninstalled and reinstalled; is this expectation accurate, or are plugins reloaded within a running instance more frequently?)