[master] Changes for https://java.net/jira/browse/GRIZZLY-1601 (Introduce a method that users may invoke within a Main method to start the server, but prevent main method from exiting.) and https://java.net/jira/browse/GRIZZLY-1602 (State transitions in HttpServer/NetworkListener methods start() and shutdownNow() appear to be occurring too early within the method call.)
(cherry picked from commit 6280a8ccf8ed6f20b73174dbd8cd1dd048fb98ea)
[master] Thought I removed that...