I would like to improve @Startup annotation to support the id and the constraints attributes, jira issue https://issues.apache.org/jira/browse/TAP5-1842
See my implementation: https://github.com/dstepanov/tapestry5/commit/21f90340d98e3aa778f65ca6a46767ad7662c8ff If there is someone who thinks that it's a nice feature to have and is willing to commit it, I will attach patch to the jira issue. Denis
