8164791: Update existing test cases of test/java/text/Format.
Reviewed-by: okutsu, peytoia
Contributed-by: nancy.nigam@oracle.com

6943119: Rebrand source copyright notices
Reviewed-by: darcy, weijun

6609750: [Fmt-De] SimpleDateFormat.format() doesn't handle pattern "y" correctly
Reviewed-by: okutsu