Out of curiosity I tried this with my test vault. But I was not able to run this.
The script output was an error message, that my java runtime was is too old.
Error: A JNI error has occurred, please check your installation and try again
Exception in thread “main” java.lang.UnsupportedClassVersionError: org/cryptomator/cracker/Cracker has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
When I check for updates in my java installation, it says it is already the latest version installed. (Same version that is recommended if I want to download Java - Version 8 Update 291)
Is it correct that one needs to have at least java development kit 11 installed to use this little tool?