SpringSource/spring-integration — pull request #122 by garyrussell (2011-10-13 21:12:20+00:00)
Title: INT-2179 Fix NPE If Connection Id Header Missing

ip_connection_id header is used to determine to which socket
a message should be written. If this header is missing, we
can't send the message and we log an error. Previously, an
NPE was thrown.

This applies to inbound gateway replies and asynchronous
outbound server messages.