ppkarwasz closed issue #1646: MappedByteBuffer unmapping on JDK 9+
URL: https://github.com/apache/logging-log4j2/issues/1646
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ppkarwasz opened a new issue, #1646:
URL: https://github.com/apache/logging-log4j2/issues/1646
## Description
The `MemoryMappedFileAppender` fails to unmap its buffers on JRE 9+: the
unmapping code (cf.
[`MemoryMappedFileAppender#unsafeUnmap()`](https://github.com/apache/logging-log4