8137056: Move SharedSecrets and interface friends out of sun.misc
Reviewed-by: alanb, mchung, psandoz, rriggs

8080629: (fs) Re-enable ability to fsync() on directories even though read()s on those directories may fail.
Summary: Revert fix applied to resolve JDK-8066915.
Reviewed-by: alanb

8066915: (fs) Files.newByteChannel opens directories for cases where subsequent reads may fail
Reviewed-by: chegar

8023173: FileDescriptor should respect append flag
Reviewed-by: martin, alanb, rriggs

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