[SOLR-13377] NestableJsonFacet ClassCastException in SolrJ 7.6+

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 7.6, 7.7, 7.7.1
• Component/s: SolrJ
• Assignee: Unassigned
• Reporter: Owen Clarke
• Created: 05/Apr/19 11:24
• Updated: 08/Jun/19 15:00
• Resolved: 09/Apr/19 21:13

Description

Identified by Gerald Bonfiglio on the mailing list: http://mail-archives.apache.org/mod_mbox/lucene-solr-user/201903.mbox/%3C2B629E99E8E563409788D895FACA8198AA754A96%40mbx031-w1-co-4.exch031.domain.local%3E

I have also encountered this issue where NestableJsonFacet occasionally receives the facet count as a Long value but blindly casts to int when assigning to domainCount, causing a ClassCastExcption. I have a fix to instead check if the count value is instanceof Number, then use Number.longValue() to safely unbox to long.

Issue Links

• is duplicated by: SOLR-13318 JsonFacetingResponse classes should record provide access to count fields as longs