[LUCENE-7817] LRUQueryCache.onQueryCache is always called with null as first parameter

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.4.1, 6.5.1, 7.0
• Fix Version/s: 6.6, 7.0
• Component/s: core/search
• Lucene Fields: New, Patch Available
• Assignee: Unassigned
• Reporter: Christoph Kaser
• Created: 05/May/17 11:27
• Updated: 28/Aug/22 15:14
• Resolved: 11/May/17 14:06

Description

According to the javadocs, LRUQueryCache.onQueryCache can be used to track usage statistics on cached queries. Unfortunately, due to a bug, the query parameter is always passed as null, making the method practically useless.

This PR fixes the problem:
https://github.com/apache/lucene-solr/pull/199