Chronon is a new technology that consists of:

A “flight data recorder” for Java programs which can record every line of code executed inside a program and save it to a file on the disk. The file can be shared among developers and played back in our special time traveling debugger (which is a plugin To Eclipse) to instantly find the root cause of an issue. 

To download and try, please go here:
http://www.chrononsystems.com/download-request/

Video demos are found here:

http://www.chrononsystems.com/video-demos/

Please take a look, as we welcome any and all feedback.

I purchased their 'Virtual Ant' program a couple of years ago. That software should never have been released for sale. At best it was at Alpha stage. I won't be fooled again.

But this seams a real good thing (R). I'll try it.

Being able to see how a program is executed can be very helpful for developers that receive someone else's code. When I started working on the holiday rentals France travel website, I had to understand what my coleague did before I could go forward and implement changes. Without the time travel debugger I wouldn't have been able to do this quickly.

Nice tool, if it works as advertised. I have been looking for such a tool for some years already and thinking about implementing it myself (however, I have too little experience in Eclipse plugin development).

Anyway, I wonder what is the performance impact on the "record" phase? I guess I cannot leave it on in production? If no, then it cannot be too useful.

I looked around on Chronon web site but this obvious question was not mentioned anywhere - I suspect that the performance is not good enough :-P

Details of performance impact and production usage are mentioned both on our blog and the community site:

http://community.chrononsystems.com/chronon_systems/topics/chronon_performance

http://eblog.chrononsystems.com/chronon-beta-the-what-who-and-why

Forbidden when access to the following link

http://chrononsystems.com/updatesite/

finally, I can install the plugin.

But after it finish install, Eclipse 3.6 complain "Fail to start the JVM" then crash.

Does 'eclipse' crash on startup or the program you are trying to run crashes?

Eclipse crash cant be a Chronon issue. Like all eclipse plugins, Chronon loads lazily and doesnt even necessarily load on startup.

Ray,
  Someone else seemed to have a similar problem to yours and we seem to have succesfully solved it.
http://community.chrononsystems.com/chronon_systems/topics/jvm_creation_failed_on_chronon_installation

Prashant