8044773: Refactor jdk.net API so that it can be moved out of the base module
Reviewed-by: alanb, erikj, mchung

6432031: Add support for SO_REUSEPORT
Reviewed-by: alanb, simonis, chegar
Contributed-by: yingqi.lu@intel.com

8143554: UnsupportedOperationException is not thrown for unsupported options
Reviewed-by: alanb
Contributed-by: Svetlana Nikandrova <svetlana.nikandrova@oracle.com>

8072384: Setting IP_TOS on java.net sockets not working on unix
Reviewed-by: michaelm

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com