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 sortable JAMon report.

Changes

This release adds a JAMon log4j Appender that will allow developers to keep aggregate statistics on log4j messages. For example, they will be able to use a JAMon Web page to view how many errors have been sent to log4j. They will also be able to 'tail' the log4j log file via a JAMon Web page. All of this can be configured via the log4j XML or properties configurator. No code changes are required in your application.

URL: JAMon - Documentation