Overview
This exception is a specialization of ProtocolException,
indicating that the connection has been gracefully shut down by the
server. The operation call that caused this exception has not been
executed by the server. In most cases you will not get this
exception, because the client will automatically retry the
operation call in case the server shut down the connection. However,
if upon retry the server shuts down the connection again, and the
retry limit has been reached, then this exception is propagated to
the application code.