I have seen how bugsense, sentry etc work. I like the way you can get the error/crash reports. What I want is a solution like those but for internal use. Using an external api like bugsense is out of the question.
Is there any similar open source solution that can be used internally?
I think using a specific logger (slf4j, log4j...) could be used. It can send e-mail for example for FATAL log with stack trace and what you want.