Currently the logging statement interpolates an IOException string value into the log message rather than including the message as a @Cause to record the full stack trace.

https://github.com/xnio/xnio/blob/c413543666fca14082bbe45aa2ae51405ac212d4/api/src/main/java/org/xnio/_private/Messages.java#L339-L341

I believe it would be more correct to include the full stack trace.

The following 1010 log line appears to suffer from a similar issue:
https://github.com/xnio/xnio/blob/c413543666fca14082bbe45aa2ae51405ac212d4/api/src/main/java/org/xnio/_private/Messages.java#L343-L345