Eadon,
When adding spring capabilities, you do have an option to copy the spring jars instead of just linking to them in, perhaps you could try adding capabilites to a dummy project and see if this would have done the trick for you.
I’m afraid I need a little more context for your current problem – if you have one.
Are you still seeing the NCDF error after copying the collections jar into your project?
Could you additionally include the build ID of Eclipse and MyEclipse?
Best,
Brian.