f176384a72
Motivation: To make it easier to understand why a Channel was closed previously and so why the operation failed with a ClosedChannelException we should include the original Exception. Modifications: - Store the original exception that lead to the closed Channel and include it in the ClosedChannelException that is used to fail the operation. - Add unit test Result: Fixes https://github.com/netty/netty/issues/8862.