[13] RFR: 8219890: Calendar.getDisplayName() returns empty string for new Japanese Era on some locales

[Naoto Sato]

Hello,

Please review the fix to the following issue:
https://bugs.openjdk.java.net/browse/JDK-8219890

The proposed changeset is located at:

http://cr.openjdk.java.net/~naoto/8219890/webrev.00/

After the fix for 8217609, some locales return empty string for the 
display name for the new era. Providing the fallback name from Era 
instance in such a case.

Naoto