8147505: BaseStream.onClose() should not allow registering new handlers after stream is consumed
Reviewed-by: psandoz

8071597: Add Stream dropWhile and takeWhile operations
Reviewed-by: briangoetz, smarks, chegar, forax

8129120: Terminal operation properties should not be back-propagated to upstream operations
Reviewed-by: briangoetz, chegar

8075307: Pipeline calculating inconsistent flag state for parallel stateful ops
Reviewed-by: smarks

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