Memory leak on macOS 12.4 21F79 arm64

[reagle]

Hi, I'm a long time DavMail user (thank you!) and since I moved to Big Sur and an M1 Mac, DavMail's memory footprint grows by hundreds of MB a day. I don't know about DavMail, Java, and dependencies, but the version I get through homebrew seems to be running as an Intel binary via Rosetta and I suspect that's part of problem. (The other app that leaks is CopyQ, a QT-based app also running via Rosetta).

I also run the Java app Freeplane, which takes a lot of memory (like all Java apps), but runs natively on the M1 and doesn't leak.

1. How would I make DavMail use a native Java?
2. Could the memory leak be plugged?
3. Could you/homebrew provision a universal binary?