The Java Application Monitor (JAMon) is a free, simple,
high performance, thread safe, Java API that allows
developers to easily monitor production applications.
JAMon can be used to determine application performance
bottlenecks, user/application interactions, and application
scalability. JAMon gathers summary statistics such as hits,
execution times (total, average, minimum, maximum, standard
deviation), and simultaneous application requests. JAMon
statistics are displayed in the clickable JAMon Report.