junhyeong9812 7f1966f5f5 Reset TwoByteMatcher partial match on mismatching byte ...

DataBufferUtils.TwoByteMatcher inherited AbstractNestedMatcher.match(byte)
without providing the mismatch fallback that its siblings implement
(KnuthMorrisPrattMatcher backtracks via its suffix-prefix table, and
SingleByteMatcher is stateless). As a result, once the first delimiter
byte had matched, the match counter stayed at 1 across any number of
intervening non-matching bytes, so a later occurrence of the second
delimiter byte falsely completed the match.

For a two-byte delimiter such as \r\n this made the matcher report a
match across non-contiguous bytes. CompositeMatcher prefers the longest
delimiter that matches at a position, so the false \r\n match was chosen
over a real single \n, causing StringDecoder to strip two bytes and drop
the character preceding a lone \n whenever a line contained a stray \r.

TwoByteMatcher now overrides match(byte) to reset the counter to 0 when
the incoming byte is not the expected next delimiter byte before
delegating to super.match(), mirroring KnuthMorrisPrattMatcher. A
genuine contiguous delimiter is unaffected.

Signed-off-by: junhyeong9812 <pickjog@gmail.com>

2026-08-05 10:36:05 +02:00

..

src

Reset TwoByteMatcher partial match on mismatching byte

2026-08-05 10:36:05 +02:00

spring-core.gradle

Consistently ignore non-loadable annotation types with ClassFile/ASM

2026-03-11 13:52:19 +01:00