RFR 8168417: Pending exceptions in java.base/windows/native/libnio

[Pavel Rappo]

Hello,

Could you please review the following change for [1]?

  http://cr.openjdk.java.net/~prappo/8168417/webrev/

This change addresses some code paths in the native NIO code for Windows
operating system where thrown exceptions might be left unnoticed.

Thanks,
-Pavel

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[1] https://bugs.openjdk.java.net/browse/JDK-8168417