[LUCENE-7349] NIOFS and SimpleFSDirectory may leak files if Channel#size() throws an exception

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 6.0, 6.1
• Fix Version/s: 6.1.1, 6.2
• Lucene Fields: New, Patch Available
• Assignee: Unassigned
• Reporter: Simon Willnauer
• Created: 21/Jun/16 10:49
• Updated: 28/Aug/22 15:00
• Resolved: 21/Jun/16 11:07

Description

We call Channel#size() inside the NIOFSIndexInput ctor but ignore the fact that it can throw an IOException. I ran into this due to a ClosedByInterrupt exception which we explicitly state don't support. This can also happen due to
an IOException and we should at least not leak a file handle in such a case.