Hi. I reported JDK-8048123 before. But I notice this issue is more complex.
It's unable to attach files at the web form, so I post to ml. At first, I thought it's a issue of the fix for JDK-8173423. However, I think it's a issue of CalendarNameProviders now. I tested attatched AupplementalEraTest2.java with 3 providers (COMPAT, CLDR and HOST). And I compared the result as dateFormatComparison.png. I think SHORT and NARROW should be same form. Thus, I think the values of follows are wrong. -At SimpleDateFormat: SHORT form of CLDR -At DateTimeFormatter: NARROW form of COMPAT and CLDR Narrow form of HOST TEST ENVIRONMENT: JDK: 9-ea+174 OS: Microsoft Windows [Version 6.1.7601] Japanese Mitsuru
