Fixes #26953
I think the we can programmatically disabling log4j shutdown hook when initialize, since SpringApplicationShutdownHook will handle shutdown. I noticed in the previous version(before 2.5.1), spring shutdown hook is executed before log4j2 shutdown hook,so no exception throws.
Or we can try catch in shutdownhandler to ignore the exception, exception means log context has been removed, so created a one will throw excpetion .I perfer the try catch method, since the previous is not Configurable.
Comment From: pivotal-cla
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Comment From: pivotal-cla
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Comment From: snicoll
@vikeychen thank you for the PR but catching ClassCastException is not an approach we're keen to take. We're exploring other options to fix this issue.