I'm going to re-trace my steps to see if I can reproduce this. I was looking at the project with Springsource ToolSuite 4, so maybe something from STS screwed up the generated project in some way. I ...

The manifest should define a buddy policy to enable buddy class loading, as described in Context Class Loader Enhancements. I'd suggest to add Eclipse-BuddyPolicy: registered. Then, the issue above is ...

The “java.lang.NoClassDefFoundError no apparent reason” is a well-known error that can occur for one of two reasons. The first reason for which the “java.lang ...