4396272: Parsing doubles fails to follow IEEE for largest decimal that should yield 0
7039391: Use Math.ulp in FloatingDecimal
Summary: Correct rounding and monotonicity problems in floats and doubles
Reviewed-by: bpb, martin
Contributed-by: NDmitry Nadezhin &lt;dmitry.nadezhin@oracle.com&gt;, Louis Wasserman <lowasser@google.com>

Summary: Performance improvements for double/float -> String and decimal/hex String -> double/float conversions.
Reviewed-by: martin, iris
Contributed-by: NSergey Kuksenko &lt;sergey.kuksenko@oracle.com&gt;, Brian Burkhalter &lt;brian.burkhalter@oracle.com&gt;, Dmitry Nadezhin &lt;dmitry.nadezhin@oracle.com&gt;, Olivier Lagneau <olivier.lagneau@oracle.com>