Server disconnect: java.nio.channels.CancelledKeyException

Ocasionally i disconnect from a server with this error:

[19:44:29 INFO]: blaxout1213 lost connection: TranslatableComponent{key='disconnect.genericReason', args=[Internal Exception: java.nio.channels.CancelledKeyException], siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}