I'm using sikuli-script.jar in my java application. It writes a lot of logging messages in the console. So, I want to disable logging or change the logging level. How I can do this? What logging library is used there and how it can be configured?
I run some Sikuli script a few times and never noticed any verbose output. I think you can override it by passing to the JVM an option like this:
-Dsikuli.Debug=ERROR
or
-Dsikuli.Debug=0
This is an untested answer. You'll have to try it yourself.