[jira] [Created] (KARAF-6453) Registering a FeaturesListener re-loads all repositories

[Fabian Lange (Jira)]

Fabian Lange created KARAF-6453:
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             Summary: Registering a FeaturesListener re-loads all repositories
                 Key: KARAF-6453
                 URL: https://issues.apache.org/jira/browse/KARAF-6453
             Project: Karaf
          Issue Type: Bug
          Components: karaf
    Affects Versions: 4.2.0
            Reporter: Fabian Lange


This is a regression from 4.2, just discovered.
It was caused in 2017 by this commit:
https://github.com/apache/karaf/commit/a75fabaf071b8274c7f266affa7ce7cdd87a2a22

https://github.com/apache/karaf/commit/a75fabaf071b8274c7f266affa7ce7cdd87a2a22#diff-29d341aa18575466b113be9168a6e7adR264
Here  the new RepositoryCacheImpl is used to create the repository. But despite 
its name, it does not use something from the cache, but it creates a new 
Repository.

This now will always "load" the repository, potentially refreshing it over http.
https://github.com/apache/karaf/commit/a75fabaf071b8274c7f266affa7ce7cdd87a2a22#diff-a3bb3d36b86e3a4c291627077972097aR47

previously it only returned a Repository that was unloaded.


Registering many FeaturesListeners wastes a lot of CPU.



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