Avoid using deprecated Log4j exception converter ctors #46372
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Signed-off-by: Volkan Yazıcı <[email protected]>
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ppkarwasz
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Jul 9, 2025
| @@ -34,24 +35,32 @@ | |||
| */ | |||
| @Plugin(name = "ExtendedWhitespaceThrowablePatternConverter", category = PatternConverter.CATEGORY) | |||
| @ConverterKeys({ "xwEx", "xwThrowable", "xwException" }) | |||
| public final class ExtendedWhitespaceThrowablePatternConverter extends ThrowablePatternConverter { | |||
| public final class ExtendedWhitespaceThrowablePatternConverter extends LogEventPatternConverter { | |||
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Nit-pick: Since ExtendedWhitespaceThrowablePatternConverter and WhitespaceThrowablePatternConverter differ only in the specific LogEventPatternConverter they delegate to, the implementation can be simplified by:
- Having one implemented in terms of the other, or
- Taking advantage of the fact that pattern converters don’t need to directly implement
LogEventPatternConverter, but only provide apublic static LogEventPatternConverter newInstance()method, you could have both plugins return the same shared private implementation ofLogEventPatternConverter, reducing duplication.
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@snicoll, please let us know how you want to proceed with. I've tried to keep the changes minimal, though I can implement the improvements suggested by @ppkarwasz, if it is of your liking. |
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Log4j
2.25.0deprecatedThrowablePatternConverterctors, where they are employed in Spring Boot's[Extended]WhitespaceThrowablePatternConverter– see apache/logging-log4j2#3809. This PR amends these classes to avoid using deprecated ctors.