[LUCENE-7646] AutomatonTermsEnum constructor throws a NullPointerException with match-all RegExp

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 6.2, 6.3
• Component/s: core/index, core/other

Environment

MacOS
java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode)

• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Tom Mortimer
• Created: 20/Jan/17 12:45
• Updated: 28/Aug/22 15:09
• Resolved: 23/Jan/17 12:04

Description

When constructing a AutomatonTermsEnum using a CompiledAutomaton with a "silly" RegExp ("..") a NullPointerException is thrown. Test case attached.