Deal with Locale provider changes in JRE9

[jsotuyod]

As stated on Java's issue database:

DK 8 has JRE as default locale provider, whereas in JDK 9 onwards CLDR is the default locale provider. (http://openjdk.java.net/jeps/252 )
To enable behavior compatible with JDK 8, set the system property java.locale.providers to a value with JRE ahead of CLDR.

In JDK 9 ,if we run the test case as " java -Djava.locale.providers=JRE,CLDR JI9032375" it is successful.
Closing as not an issue.

This change means date parsing is failing on the latest Java 9 early access since DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, Locale.ENGLISH) will require the format "M/d/yy, h:mm a", instead of the traditional "M/d/yy h:mm a" of JRE8 (notice there is a comma).

This break is evidenced by #16

SpotBugs should work as is, without extra JVM arguments, for all users on all environments. So we need to work around this. Possibly creating a SimpleDateFormat with an explicit pattern and Locale rather than using the default should work.

[jsotuyod]

Closed by #18