JsonParser.getCurrentLocation().getByteOffset() returns wrong offset when initialized with ByteArrayInputStream

[acadiamjh]

When the JsonParser is initialized with a byte[] it seems to work in all versions back to 2.7.x (and maybe earilier). When the JsonParser is initialized with a ByteArrayInputStream it fails in 2.10.2, but works in earlier versions.

This seems to be a new issue in Jackson 2.10.2 as this was working in 2.9.10 (and several previous versions going back to at least 2.7.x). This bug was picked up in an extensive JUnit suite I run for testing out my framework after I attempted an upgrade to Jackson 2.10.2 (from 2.9.10). This is a blocker for me in that I can't upgrade past 2.9.10 until this is resolved.

I have attached a JUnit test that reproduces the issue and contains comments as well as debug statements to better explain the issue:
jackson_byte_offset_bug.zip

[cowtowncoder]

Ok thank you for reporting this, providing a reproduction. I'll have a look to see which change in 2.10.x is relevant: release notes suggest #455 (added in 2.10.1) could be related but most likely it is #533 (BOM handling). BOM, 3-byte marker for UTF-8, should not count for logical content (column), but does need to be considered for byte offset I think.

[cowtowncoder]

Ok, I think this is probably same as #603 and quick test supports this. Will close assuming it is the same root cause; please let me know if I made a mistake.