[SLING-11328] resource resolver: scales badly for duplicate vanity paths

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Resolved
• Affects Version/s: Resource Resolver 1.8.6
• Fix Version/s: Resource Resolver 1.10.0
• Component/s: ResourceResolver
• Assignee: Carsten Ziegeler
• Reporter: Julian Reschke
• Created: 21/May/22 11:18
• Updated: 12/Aug/22 11:18
• Resolved: 07/Jul/22 04:39

Description

See <https://github.com/apache/sling-org-apache-sling-resourceresolver/blob/52b8366e9b6e5ddff14b1ed340e780247b2d627a/src/main/java/org/apache/sling/resourceresolver/impl/mapping/MapEntries.java#L955-L976>:

• upon add, new list is created, copied to, and then sorted

Proposal:

• avoid copying
• avoid sorting over and over again during resolver startup