[IO-814] FileUtils.deleteDirectory can throw UncheckedIOException

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.13.0, 2.14.0
• Fix Version/s: 2.15.0
• Assignee: Unassigned
• Reporter: Elliotte Rusty Harold
• Created: 03/Oct/23 14:47
• Updated: 29/Jan/24 17:40
• Resolved: 07/Oct/23 15:37

Description

This was a behavior breaking change, and an incorrect one to boot.

Operations that can have I/O errors should throw IOException if they can't directly handle the I/O error. UncheckedIOException is not a reasonable alternative.

A method that can neither handle nor throw IOException must not perform I/O operations.

It's worth noting that functional programming, not just in Java but in general, does not allow I/O. As soon as a method performs I/O, it's no longer a pure function and should not be written in a functional style.

Issue Links

• links to: GitHub Pull Request #491