AbstractScanner seems to validate if URL has a corresponding ArchiveDescriptorInfo. I've got a custom OSGi scanning support for Apache Aries JPA environment which seemed to work fine until I tried to instantiate it on my own. It seems that I have overlapping URLs between persistence-units thus the scanner started to nag about it. There is a nice template method to which allows to remove this nag but most unfortunate decision of placing one of the parameter types (namely ArchiveDescriptorInfo) as private makes this impossible.

I propose that ArchiveDescriptorInfo class would be made protected to avoid this issue