[Apofis]

Any chance of something like this being available for Java/Kotlin on JVM?

[aoli-al]

https://github.com/cmu-pasta/fray

Fray is a controlled concurrency testing tool for the JVM that supports record and replay. It could be a perfect backend for codetracer. (I'm the author of Fray)

[bramhaag]

https://undo.io/ supports Java

[Apofis]

You don't see software going for $8000 frequently! Wow!