Unused static field AbstractWatchKey#OVERFLOW_EVENT

[Andrey Turbanov]

Hello.
I noticed unused field sun.nio.fs.AbstractWatchKey#OVERFLOW_EVENT
https://github.com/openjdk/jdk/blob/e9f97b2e8cf301ba6b69101e5efc5c71d26bc87b/src/java.base/share/classes/sun/nio/fs/AbstractWatchKey.java#L45

As I can see, it was already unused in the initial version of
https://bugs.openjdk.org/browse/JDK-4313887
Does VM use this field somehow? Or used to use?

Andrey Turbanov