Changes between 4.0.1 and 4.0.2.RC1

This is a release candidate for 4.0.2, a maintenance release that includes a bug fix in the NIO connector. This release is backward-compatible with 4.0.1.

NIO main thread can terminate due to an unhandled AssertionError

An AssertionError can be thrown in some edge cases and terminates the NIO main thread. This type of exception is now properly handled. AssertionError is actually not justified in this case, but this behavior is kept for compatibility reasons. More appropriate exceptions will be used in 5.0.0 (see #239).

GitHub issue: #237