JDK 10 Review Request for JDK-6609740: [Fmt-De] format error in DecimalFormat

[Nishit Jain]

Hi,

Please review the fix for JDK-6609740.
Bug: https://bugs.openjdk.java.net/browse/JDK-6609740
Webrev: http://cr.openjdk.java.net/~nishjain/6609740/webrev.02/

Issue: The negative sub-pattern is not handled properly as specified in 
the API specof DecimalFormat
Fix: Ignore all the special characters e.g. digits, zeroDigit, 
groupingSeparator, decimalSeparator, exponent in a negative 
sub-patternand consider only prefix and suffix part.

Regards,
Nishit Jain