castor-1.0.4.jar on maven repo is not same as the one distributed by codehaus

[nicolas de loof]

I've got an issue with castor jar :

artifacts from http://dist.codehaus.org/castor/1.0.4/ are compiled for 1.3,
and the ones published at
http://repo1.maven.org/maven2/org/codehaus/castor/castor/1.0.4/ require java
1.4

Jars are not the same. What's wrong ?
Who published those jars ? Where do they come from ?

Nico