4.1.9 breaks epoll selector rebuild

The following commit appears to break the epoll selector rebuild logic in rebuildSelector():

https://github.com/netty/netty/commit/795f318c3c11ec0520e7acd963ad4b310c287c20

If the logic is fired by an excessive number of premature returns, you will hit an exception like this:

java.lang.ClassCastException: io.netty.channel.nio.SelectedSelectionKeySetSelector cannot be cast to java.nio.channels.spi.AbstractSelector
        at java.nio.channels.spi.AbstractSelectableChannel.register(AbstractSelectableChannel.java:212)
        at io.netty.channel.nio.NioEventLoop.rebuildSelector0(NioEventLoop.java:347)
        at io.netty.channel.nio.NioEventLoop.rebuildSelector(NioEventLoop.java:318)
        at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:769)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:388)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
        at java.lang.Thread.run(Thread.java:745)

Looks like a case of replacing the selector member with the unwrappedSelector() method may have been missed?

[md-5]

Apologies @normanmaurer , looks like a packaging error on our behalf caused the incorrect version to be used.

Thanks for looking anyway

[normanmaurer]

No worries… more unit tests FTW

Am 16.07.2017 um 03:44 schrieb md-5 [e-mail]:

Apologies @normanmaurer , looks like a packaging error on our behalf caused the incorrect version to be used.

Thanks for looking anyway

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