case one: Spring IDE 2.2.1 with Eclipse Ganemede (SR3.4.1) 
Update: failed
Beacuse you are hitting a bug/problem in Eclipse AJDT. AJDT is automatically installed when you select the Spring IDE feature "Integrations/Spring IDE AJDT Integration (optional). 

To work-around that problem please de-select the above mentioned Spring IDE feature until the AJDT team fixed the problem.

case two: Spring IDE 2.0.6 with Eclipse Ganemede (SR3.4.1)