[KARAF-7606] Install features in predictable order

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.4.2
• Component/s: karaf
• Assignee: Unassigned
• Reporter: Amichai Rothman
• Created: 07/Nov/22 09:23
• Updated: 21/Dec/22 07:45

Description

The order in which features are installed can make a difference due to some conflicts, refreshes, etc. When installing features e.g. via featuresBoot, they seem to get installed in arbitrary order and not in the specified order, which makes it impossible to control the order, and have predictable application startup and behavior. This is likely due to the use of HashSets and HashMaps in the featuresServiceImpl processing (and possibly elsewhere). Using LinkedHashSets or similar when processing/mapping/creating sets can help keep the order predictable. Or just use Lists and remove duplicates once at the beginning.