Check out our project page to learn more (downloads, docs): http://code.google.com/p/javasimon
Java Simon was overhauled since the first version (it's not compatible with it) and you can expect following changes:
* object Split was introduced (returned by stopwatch start) to provide better flexibility for single/multi-threaded environment;
* you can extend Java Simon behavior via Callbacks and hook your own functions on various events;
* JMX and Spring support tools was added;
* Maven 2 is supported (java.net repository).
What stays the same:
* you can measure splits, stopwatch provides total time, number of time splits, tracks max/min time, time stamps when extremes were measured, deviation, variance, first/last usage time stamp - of course enable/disable and reset features are provided too;
* time split is measured in nanoseconds (hence JDK 1.5 or higher is required) - of course timestamps are in millis;
* all monitors are stored in a tree hierarchy similar to java.util.logging API - this provides powerful features like enable/disable/reset of the whole subtrees of this monitor hierarchy;
* simple to use JDBC Proxy driver;
* and finally we think we still keep our documentation standards.
See us on the project page (http://code.google.com/p/javasimon
/), on http://www.javasimon.org
or join the group http://groups.google.com/group/javasimon