[LUCENE-3831] Passing a null fieldname to MemoryFields#terms in MemoryIndex throws a NPE

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.0-ALPHA
• Fix Version/s: 3.6, 4.0-ALPHA
• Component/s: core/index
• Lucene Fields: New, Patch Available
• Assignee: Michael McCandless
• Reporter: Alan Woodward
• Created: 28/Feb/12 11:31
• Updated: 27/Aug/24 15:39
• Resolved: 07/Mar/12 19:38

Description

I found this when querying a MemoryIndex using a RegexpQuery wrapped by a SpanMultiTermQueryWrapper. If the regexp doesn't match anything in the index, it gets rewritten to an empty SpanOrQuery with a null field value, which then triggers the NPE.