The guys at ZeroTurnaround (makers of JRebel) have been running a survey on redeploy and restart turnaround time in Java App Servers that has >1100 responses so far. The survey's 3 questions ask about AppServer usage and redeploy and restart time. Although doing a good survey is tricky - for example, in this case the sample is self-selected (but not as bad as with the Reader's Choice), the impact of (Re)Deployment tooling/configurations is unknown and the time is estimated, not measured - I think this one is useful in calling attention to the importance of the full develop/deploy/debug cycle. GFv2 did very well and v3 is even faster!

Jevgeni's analysis has some reasonable comments although some others seem unwarranted by the data. The most popular containers were Tomcat (29%), JBoss (25%), WLS (13%), WAS (12%) and GF (10%) (OC4J is 4%), with the caveat about self-selected samples. As a reminder of the importance of methodology, I'll point out that only 1 respondent listed Geronimo; readers may compare to that EDC Survey from Last Year.

Also note the impact of twitter and reddit in the comment thread - there are 117 comments as of this post... almost all of them very short 'heads-up' with no added value - sigh...