[2.3.x] + fix issue #1615
https://java.net/jira/browse/GRIZZLY-1615

"NullPointerException in Glassfish 4.0/Grizzly; HTTP port disappears"
[2.3.x] + forgot to copy-paste imports for fix issue #1615
https://java.net/jira/browse/GRIZZLY-1615

"NullPointerException in Glassfish 4.0/Grizzly; HTTP port disappears"
[2.3.x] + fix copyright