I haven't tried yet to use Spring 3.0.x to see if there are still any problems.I understand the risk but I dont think this is the right solution since the more Java move to better concurrency support, sticking with the "deprecated" class will make the framework to be sluggish.Removing this dependency on Doug's concurrency package to Java EE concurrency package and supporting Java generics should make the Click framework to be more faster and efficient.
Adrian.
