I got it working. Everything was fine, but I had to add the trove.jar library to the classpath. That was not mentioned in the article. But the error only occured at runtime, compilation was fine without the lib. Does anybody know why?
And another question: Is it possible to define excludes in the class parameter of the interceptor-pointcut tag? I tried a bit with regular expressions, but didn't get a running solution. I would like to add a whole package to the interceptor-pointcut, but exclude one class / subpackage.
Thanks again for any help!!