src/jdk.localedata/share/classes/sun/text/resources/ext/FormatData_ja.java

rev 55480 : 8227127: Era designator not displayed correctly using the COMPAT provider
Reviewed-by:

@@ -95,10 +95,14 @@
         };
         final String[] rocEras = {
             "\u6c11\u56fd\u524d",
             "\u6c11\u56fd",
         };
+        final String[] gregoryEras = {
+            "\u7d00\u5143\u524d",
+            "\u897f\u66a6",
+        };
         return new Object[][] {
             { "MonthNames",
                 new String[] {
                     "1\u6708", // january
                     "2\u6708", // february

@@ -169,16 +173,12 @@
                 new String[] {
                     "\u5348\u524d", // am marker
                     "\u5348\u5f8c" // pm marker
                 }
             },
-            { "Eras",
-                new String[] { // era strings for GregorianCalendar
-                    "\u7d00\u5143\u524d",
-                    "\u897f\u66a6"
-                }
-            },
+            { "Eras", gregoryEras },
+            { "short.Eras", gregoryEras },
             { "buddhist.Eras",
                 new String[] { // era strings for Thai Buddhist calendar
                     "\u7d00\u5143\u524d", // Kigenzen
                     "\u4ecf\u66a6",       // Butsureki
                 }