Spring 2.5 and Maven problems
It looks like the spring 2.5 jars that where uploaded to the official maven repository are broken. The full spring jar is 321 kb large and only contains the spring aop classes.
Anyway I added springs own repository to my pom and then i got the correct jar and sources
<name>Spring Portfolio Repository</name> <url>https://springframework.svn.sourceforge.net/svnroot/springframework/repos/repo</url>