[LUCENE-4919] IntsRef, BytesRef and CharsRef return incorrect hashcode when filled with 0

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 4.2
• Fix Version/s: 4.3
• Component/s: core/other
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Renaud Delbru
• Created: 09/Apr/13 10:15
• Updated: 28/Aug/22 13:43
• Resolved: 09/Apr/13 13:21

Description

IntsRef, BytesRef and CharsRef implementation do not follow the java Arrays.hashCode implementation, and return incorrect hashcode when filled with 0.
For example, an IntsRef with { 0 } will return the same hashcode than an IntsRef with { 0, 0 }.