[MarkerResolver] Expose parents as a list under field name parents
#1381
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PatternLayout can display the marker's parents with
%marker
. I thought it would be handy if the JSON Template Layout also had that capability.Also added tests for the existing MarkerResolver since there weren't any
Additionally:
Slightly modified the TestHelper to catch exceptions in
readJson
and re-throw with the serialized event, to make it a little easier to debug JSON formatting issues.Checklist
2.x
branch if you are targeting Log4j 2; usemain
otherwise./mvnw verify
succeeds (if it fails due to code formatting issues reported by Spotless, simply runspotless:apply
and retry)src/changelog/.2.x.x
directory