The following Spring beans defined in the extension module are in conflict with
beans defined in the ACS repository:
extension_bean
Spring beans are the basic building blocks of the ACS repository. Replacing these
will alter the behaviour of the system and can lead to unexpected behaviour.
Since all these beans are subject to change between Alfresco versions and even in
service packs, these modifications are typically bound to a specific Alfresco
version.
You should avoid redefining default beans of the ACS repository in your
extensions to reduce the cost of upgrades.
It is possible that these conflicts only exist in specific ACS versions. Run this
tool with the -verbose option to get a complete list of versions where each of
these files has conflicts.