hutiefang76 opened a new issue, #12667:
URL: https://github.com/apache/seatunnel/issues/12667
## Search before asking
- [x] Searched existing issues and pull requests; no existing fix for this
reproduction was found.
## What happened
DateUtils.matchDateFormatter accepts ISO local datetime text with a
fractional second and optional Z, but its corresponding formatter puts the
fraction and Z in the same optional block. A value such as
2024-12-16T15:33:45.123 matches the pattern and then fails to parse. This also
affects DATE fields parsed from CSV/Text through DateUtils.
## SeaTunnel Version
dev at 760c33a94433db85b974ae4d6622d05b726a4a47
## SeaTunnel Config
```text
Utility-level reproduction; no job configuration required.
```
## Running Command / reproduction
Call DateUtils.parse("2024-12-16T15:33:45.123"). Expected LocalDate
2024-12-16; actual DateTimeParseException with unparsed text at index 19. The
same text with a trailing Z parses. Whole-second text without Z also parses.
Regression command after adding the test:
```shell
./mvnw -q -pl seatunnel-common -am -Dtest=DateUtilsTest
-Dsurefire.failIfNoSpecifiedTests=false package
```
## Error Exception
JDK 17: DateUtilsTest, 6 tests passed after the fix. Against the original
formatter, the same suite produced 1 error (fractional local datetime without
Z).
## Java or Scala Version
JDK 17, macOS.
## Are you willing to submit PR?
- [x] Yes
## Code of Conduct
- [x] I agree to follow the Apache Code of Conduct.
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