getLocales() in DefaultMetaTypeProvider needs to check return of findEntries

DefaultMetaTypeProvider:128 does a findEntries call which it then uses at 130 , but assumes that it will always be non-null. findEntries can, and does, return null.

If it helps, I encountered this problem in felix karaf 2.1.4, when I added a bundle to the system to iterate on MetaType information for all the ManagedService and ManagedServiceFactory bundles in the system, IF they also had an associated configuration (even an empty one should be iterable to a limited extent, aka, recognizing that it has a configuration). All the bundles successfully iterated except for FileInstall 3.1.10. This may or may not imply that there is also a bug in FileInstall 3.1.10.