ramanathan1504 commented on issue #4248:
URL:
https://github.com/apache/logging-log4j2/issues/4248#issuecomment-5263614087
@tfmorris Thanks. `elementType` looks like a red herring.
If `IndentingLayout` isn't in the registry its node has a `null` plugin
type, and `ConsoleAppender`'s inherited `Property[]` element sends the visitor
down the array branch, which calls `childType.getElementName()` unguarded
that's the NPE. The single-value branch has had that null check since #1392.
Same NPE with and without `elementType`, and on 2.25.4 and 2.26.0 too, so it
isn't new in 2.26.1, which version were you on before, and did the JDK change
too? Your config also says `packages = com.google.refine.logging` while the
class is in `com.google.util.logging`, so registration only comes from the
generated `Log4j2Plugins.dat` is that in your jar?
I'll add the missing null check either way.
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