diff --git a/ojluni/src/main/java/java/time/chrono/JapaneseChronology.java b/ojluni/src/main/java/java/time/chrono/JapaneseChronology.java
index 29e503e..57fdb7a 100644
--- a/ojluni/src/main/java/java/time/chrono/JapaneseChronology.java
+++ b/ojluni/src/main/java/java/time/chrono/JapaneseChronology.java
@@ -371,9 +371,8 @@
     /**
      * Returns the calendar system era object from the given numeric value.
      *
-     * See the description of each Era for the numeric values of:
-     * {@link JapaneseEra#HEISEI}, {@link JapaneseEra#SHOWA},{@link JapaneseEra#TAISHO},
-     * {@link JapaneseEra#MEIJI}), only Meiji and later eras are supported.
+     * The numeric values supported by this method are the same as the
+     * numeric values supported by {@link JapaneseEra#of(int)}.
      *
      * @param eraValue  the era value
      * @return the Japanese {@code Era} for the given numeric era value
diff --git a/ojluni/src/main/java/java/time/chrono/JapaneseEra.java b/ojluni/src/main/java/java/time/chrono/JapaneseEra.java
index d52f3c1..ffaad9c 100644
--- a/ojluni/src/main/java/java/time/chrono/JapaneseEra.java
+++ b/ojluni/src/main/java/java/time/chrono/JapaneseEra.java
@@ -155,7 +155,7 @@
      * which has the value 3. The end date of this era is not specified, unless
      * the Japanese Government defines it.
      */
-    private static final JapaneseEra REIWA = new JapaneseEra(3, LocalDate.of(2019, 5, 1));
+    public static final JapaneseEra REIWA = new JapaneseEra(3, LocalDate.of(2019, 5, 1));
 
     // The number of predefined JapaneseEra constants.
     // There may be a supplemental era defined by the property.
diff --git a/ojluni/src/main/java/java/util/JapaneseImperialCalendar.java b/ojluni/src/main/java/java/util/JapaneseImperialCalendar.java
index a0ee15e..424acc4 100644
--- a/ojluni/src/main/java/java/util/JapaneseImperialCalendar.java
+++ b/ojluni/src/main/java/java/util/JapaneseImperialCalendar.java
@@ -104,7 +104,7 @@
     /**
      * The ERA constant designating the Reiwa era.
      */
-    private static final int REIWA = 5;
+    public static final int REIWA = 5;
 
     private static final int EPOCH_OFFSET   = 719163; // Fixed date of January 1, 1970 (Gregorian)
     private static final int EPOCH_YEAR     = 1970;
diff --git a/ojluni/src/test/java/time/tck/java/time/chrono/TCKJapaneseChronology.java b/ojluni/src/test/java/time/tck/java/time/chrono/TCKJapaneseChronology.java
index 951b30c..6e87394 100644
--- a/ojluni/src/test/java/time/tck/java/time/chrono/TCKJapaneseChronology.java
+++ b/ojluni/src/test/java/time/tck/java/time/chrono/TCKJapaneseChronology.java
@@ -176,7 +176,7 @@
     @DataProvider(name="createByEra")
     Object[][] data_createByEra() {
         return new Object[][] {
-                {JapaneseEra.of(3), 2020 - YDIFF_REIWA, 2, 29, 60, LocalDate.of(2020, 2, 29)},
+                {JapaneseEra.REIWA, 2020 - YDIFF_REIWA, 2, 29, 60, LocalDate.of(2020, 2, 29)},
                 {JapaneseEra.HEISEI, 1996 - YDIFF_HEISEI, 2, 29, 60, LocalDate.of(1996, 2, 29)},
                 {JapaneseEra.HEISEI, 2000 - YDIFF_HEISEI, 2, 29, 60, LocalDate.of(2000, 2, 29)},
                 {JapaneseEra.MEIJI, 1874 - YDIFF_MEIJI, 2, 28, 59, LocalDate.of(1874, 2, 28)},
@@ -369,8 +369,8 @@
     @DataProvider(name="prolepticYear")
     Object[][] data_prolepticYear() {
         return new Object[][] {
-                {3, JapaneseEra.of(3), 1, 1 + YDIFF_REIWA, false},
-                {3, JapaneseEra.of(3), 102, 102 + YDIFF_REIWA, true},
+                {3, JapaneseEra.REIWA, 1, 1 + YDIFF_REIWA, false},
+                {3, JapaneseEra.REIWA, 102, 102 + YDIFF_REIWA, true},
 
                 {2, JapaneseEra.HEISEI, 1, 1 + YDIFF_HEISEI, false},
                 {2, JapaneseEra.HEISEI, 4, 4 + YDIFF_HEISEI, true},
@@ -555,7 +555,7 @@
             { JapaneseEra.TAISHO, 0, "Taisho"},
             { JapaneseEra.SHOWA, 1, "Showa"},
             { JapaneseEra.HEISEI, 2, "Heisei"},
-            { JapaneseEra.of(3), 3, "Reiwa"},
+            { JapaneseEra.REIWA, 3, "Reiwa"},
         };
     }
 
diff --git a/ojluni/src/test/java/time/tck/java/time/chrono/TCKJapaneseEra.java b/ojluni/src/test/java/time/tck/java/time/chrono/TCKJapaneseEra.java
index e37a6a5..ec6b826 100644
--- a/ojluni/src/test/java/time/tck/java/time/chrono/TCKJapaneseEra.java
+++ b/ojluni/src/test/java/time/tck/java/time/chrono/TCKJapaneseEra.java
@@ -77,7 +77,7 @@
     @DataProvider(name = "JapaneseEras")
     Object[][] data_of_eras() {
         return new Object[][] {
-                    {JapaneseEra.of(3), "Reiwa", 3},
+                    {JapaneseEra.REIWA, "Reiwa", 3},
                     {JapaneseEra.HEISEI, "Heisei", 2},
                     {JapaneseEra.SHOWA, "Showa", 1},
                     {JapaneseEra.TAISHO, "Taisho", 0},
diff --git a/ojluni/src/test/java/time/test/java/time/chrono/TestJapaneseChronology.java b/ojluni/src/test/java/time/test/java/time/chrono/TestJapaneseChronology.java
index 03443d9..e2da619 100644
--- a/ojluni/src/test/java/time/test/java/time/chrono/TestJapaneseChronology.java
+++ b/ojluni/src/test/java/time/test/java/time/chrono/TestJapaneseChronology.java
@@ -60,7 +60,7 @@
             { JapaneseEra.SHOWA,     64,  1,  7, 1989 },
             { JapaneseEra.HEISEI,     1,  1,  8, 1989 },
             { JapaneseEra.HEISEI,    31,  4, 30, 2019 },
-            { JapaneseEra.of(3),      1,  5,  1, 2019 },
+            { JapaneseEra.REIWA,      1,  5,  1, 2019 },
         };
     }
 
@@ -78,7 +78,7 @@
             { JapaneseEra.HEISEI,  1,    1,  1,  8 },
             { JapaneseEra.HEISEI,  2,    8,  1,  8 },
             { JapaneseEra.HEISEI, 31,  120,  4, 30 },
-            { JapaneseEra.of(3),   1,    1,  5,  1 },
+            { JapaneseEra.REIWA,   1,    1,  5,  1 },
         };
     }
 
@@ -111,8 +111,8 @@
             { JapaneseEra.HEISEI,     1,  1,  7 },
             { JapaneseEra.HEISEI,     1,  2, 29 },
             { JapaneseEra.HEISEI,    31,  5,  1 },
-            { JapaneseEra.of(3),      1,  4, 30 },
-            { JapaneseEra.of(3), Year.MAX_VALUE,  12, 31 },
+            { JapaneseEra.REIWA,      1,  4, 30 },
+            { JapaneseEra.REIWA, Year.MAX_VALUE,  12, 31 },
         };
     }
 
@@ -132,9 +132,9 @@
             { JapaneseEra.HEISEI,    -1 },
             { JapaneseEra.HEISEI,     0 },
             { JapaneseEra.HEISEI,    32 },
-            { JapaneseEra.of(3),     -1 },
-            { JapaneseEra.of(3),      0 },
-            { JapaneseEra.of(3), Year.MAX_VALUE },
+            { JapaneseEra.REIWA,     -1 },
+            { JapaneseEra.REIWA,      0 },
+            { JapaneseEra.REIWA, Year.MAX_VALUE },
         };
     }
 
@@ -152,8 +152,8 @@
             { JapaneseEra.HEISEI,  1, 360 },
             { JapaneseEra.HEISEI,  2, 366 },
             { JapaneseEra.HEISEI, 31, 121 },
-            { JapaneseEra.of(3),   1, 246 },
-            { JapaneseEra.of(3),   2, 367 },
+            { JapaneseEra.REIWA,   1, 246 },
+            { JapaneseEra.REIWA,   2, 367 },
         };
     }
 
@@ -165,7 +165,7 @@
             { "Taisho", JapaneseEra.TAISHO,     null },
             { "Showa",  JapaneseEra.SHOWA,      null },
             { "Heisei", JapaneseEra.HEISEI,     null },
-            { "Reiwa", JapaneseEra.of(3),       null },
+            { "Reiwa", JapaneseEra.REIWA,       null },
             { "NewEra", null,                   IllegalArgumentException.class},
         };
     }