<i18n dev> RFR: 8152817: Locale data loading fails silently when running with a security manager

[Masayoshi Okutsu]

Hello,

Please review the fix for JDK-8152817. The fix is to load locale data 
from its own module without calling 
ResourceBundleProviderSupport.loadResourceBundle.

I changed the synopsis of the JBS issue because it's a general issue of 
loading locale data under a security manager, and the regression test 
uses DateFormatSymbols.

Issue:
https://bugs.openjdk.java.net/browse/JDK-8152817
Webrev:
http://cr.openjdk.java.net/~okutsu/9/8152817/webrev.00/

Thanks,
Masayoshi