NioConnection: interestOps() called on wrong channel ---------------------------------------------------- Key: JGRP-1960 URL: https://issues.jboss.org/browse/JGRP-1960 Project: JGroups Issue Type: Bug Reporter: Bela Ban Assignee: Bela Ban Fix For: 3.6.6 When we accept a connection in NioServer, we set the of key of {{NioConnection}} to the one associated with the ServerSocketChannel. Later, when {{key.interestOps(key.interestOps() | SelectionKet.OP_WRITE)}} is called, an IllegalArgumentException will be thrown because a ServerSocketChannel doesn't support this op (only {{OP_ACCEPT}}). SOLUTION: grab the {{SocketChannel}} returned from {{ServerSocketChannel.accept()}} and use *it* instead of the {{ServerSocketChannel}} to call {{interestOps()}}.