I\'m setting a Spring 3.2.3 + Hibernate 4 project in Eclipse 4.3.
When I add the code
Ok, I finally found the solution to my problem!
When I installed the Spring Tools plugin it seems I forgot to check both "AspectJ Compiler" and "AspectJ Development Tools" from the plugin list. As soon as I installed and restarted the Eclipse, the errors disappeared.
Here's a print screen if someone interested: