Android patch: CLDR data: Force default Gregorian calendar.

This change was introduced in Android by this patch:

https://android.googlesource.com/platform/external/icu/+/b844b3e

And then amended by the ICU 52 upgrade:

https://android.googlesource.com/platform/external/icu/+/59d709d

And then amended for ICU 55:

https://android.googlesource.com/platform/external/icu/+/fafa8ad

And then amended for ICU 58:

https://android.googlesource.com/platform/external/icu/+/047edd2

And then amended for ICU 64, updating test expectaiotns for
DateIntervalFormatTest and removing obsolete th_TH_TRADIOTIONAL locale
from IBMCalendarTest since it is now equivalent to th_TH.

Test: n/a
Change-Id: I3f16825a16cc90857106ebec1138ffc2bb154715

4 files changed, 54 insertions, 37 deletions

diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/CalendarRegressionTest.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/CalendarRegressionTest.java
index 8f73d1621..134d170c1 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/CalendarRegressionTest.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/CalendarRegressionTest.java
@@ -2150,32 +2150,36 @@ public class CalendarRegressionTest extends com.ibm.icu.dev.test.TestFmwk {
         Locale loc = new Locale("en", "TH");
         Calendar cal = Calendar.getInstance(loc);
         String calType = cal.getType();
-        if ( !calType.equals("buddhist")) {
-            errln("FAIL: Calendar type for en_TH should still be buddhist");
+        // Android patch: Force default Gregorian calendar.
+        if ( !calType.equals("gregorian")) {
+            errln("FAIL: Calendar type for en_TH should still be gregorian");
         }
+        // Android patch end.
     }
 
     @Test
     public void TestGetKeywordValuesForLocale(){
 
+        // Android patch: Force default Gregorian calendar.
         final String[][] PREFERRED = {
             {"root",        "gregorian"},
             {"und",         "gregorian"},
             {"en_US",       "gregorian"},
             {"en_029",      "gregorian"},
-            {"th_TH",       "buddhist", "gregorian"},
-            {"und_TH",      "buddhist", "gregorian"},
-            {"en_TH",       "buddhist", "gregorian"},
+            {"th_TH",       "gregorian", "buddhist"},
+            {"und_TH",      "gregorian", "buddhist"},
+            {"en_TH",       "gregorian", "buddhist"},
             {"he_IL",       "gregorian", "hebrew", "islamic", "islamic-civil", "islamic-tbla"},
             {"ar_EG",       "gregorian", "coptic", "islamic", "islamic-civil", "islamic-tbla"},
             {"ja",          "gregorian", "japanese"},
             {"ps_Guru_IN",  "gregorian", "indian"},
-            {"th@calendar=gregorian",   "buddhist", "gregorian"},
+            {"th@calendar=gregorian",   "gregorian", "buddhist"},
             {"en@calendar=islamic",     "gregorian"},
             {"zh_TW",       "gregorian", "roc", "chinese"},
-            {"ar_IR",       "persian", "gregorian", "islamic", "islamic-civil", "islamic-tbla"},
-            {"th@rg=SAZZZZ", "islamic-umalqura", "gregorian", "islamic", "islamic-rgsa"},
+            {"ar_IR",       "gregorian", "persian", "islamic", "islamic-civil", "islamic-tbla"},
+            {"th@rg=SAZZZZ", "gregorian", "islamic-umalqura", "islamic", "islamic-rgsa"},
         };
+        // Android patch end.
 
         String[] ALL = Calendar.getKeywordValuesForLocale("calendar", ULocale.getDefault(), false);
         HashSet ALLSET = new HashSet();
diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/IBMCalendarTest.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/IBMCalendarTest.java
index 03e6a0c74..306a3f864 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/IBMCalendarTest.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/calendar/IBMCalendarTest.java
@@ -332,9 +332,11 @@ public class IBMCalendarTest extends CalendarTestFmwk {
         // Thai locale
         Calendar cal = Calendar.getInstance(new ULocale("th_TH"));
         String type = cal.getType();
-        if (!type.equals("buddhist")) {
-            errln("FAIL: Buddhist calendar is not returned for locale " + cal.toString());
+        // Android patch: Force default Gregorian calendar.
+        if (!type.equals("gregorian")) {
+            errln("FAIL: Gregorian calendar is not returned for locale " + cal.toString());
         }
+        // Android patch end.
     }
 
     /**
@@ -1101,6 +1103,7 @@ public class IBMCalendarTest extends CalendarTestFmwk {
                 "th@rg=SA",		// ignore malformed rg tag, use buddhist
         };
 
+        // Android patch: Force default Gregorian calendar.
         String[] types = {
                 "gregorian",
                 "japanese",
@@ -1108,20 +1111,21 @@ public class IBMCalendarTest extends CalendarTestFmwk {
                 "japanese",
                 "buddhist",
                 "gregorian",
-                "buddhist",
                 "gregorian",
                 "gregorian",
-                "buddhist",
-                "buddhist",
-                "buddhist",
+                "gregorian",
+                "gregorian",
+                "gregorian",
+                "gregorian",
                 "gregorian",    // iso8601 is a gregorian sub type
                 "gregorian",
-                "islamic-umalqura",
-                "islamic-umalqura",
+                "gregorian",
+                "gregorian",
                 "japanese",
-                "buddhist",
-                "buddhist",
+                "gregorian",
+                "gregorian",
         };
+        // Android patch end.
 
         for (int i = 0; i < locs.length; i++) {
             Calendar cal = Calendar.getInstance(new ULocale(locs[i]));
diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/DateIntervalFormatTest.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/DateIntervalFormatTest.java
index 5805b03ef..345326867 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/DateIntervalFormatTest.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/DateIntervalFormatTest.java
@@ -649,48 +649,54 @@ public class DateIntervalFormatTest extends TestFmwk {
 
                 // Thai (default calendar buddhist)
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "EEEEdMMMy", "\\u0E27\\u0E31\\u0E19\\u0E1E\\u0E38\\u0E18\\u0E17\\u0E35\\u0E48 10 \\u0E15.\\u0E04. 2550 \\u2013 \\u0E27\\u0E31\\u0E19\\u0E28\\u0E38\\u0E01\\u0E23\\u0E4C\\u0E17\\u0E35\\u0E48 10 \\u0E15.\\u0E04. 2551",
+                // Android patch: Force default Gregorian calendar.
 
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "EEEEdMMMy", "\\u0E27\\u0E31\\u0E19\\u0E40\\u0E2A\\u0E32\\u0E23\\u0E4C\\u0E17\\u0E35\\u0E48 10 \\u0E15.\\u0E04. 2550 \\u2013 \\u0E27\\u0E31\\u0E19\\u0E2D\\u0E32\\u0E17\\u0E34\\u0E15\\u0E22\\u0E4C\\u0E17\\u0E35\\u0E48 10 \\u0E15.\\u0E04. 2551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "dMMM", "10 \\u0E15.\\u0E04. 2550 \\u2013 10 \\u0E15.\\u0E04. 2551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "MMMy", "\\u0E15.\\u0E04. 2550 \\u2013 \\u0E15.\\u0E04. 2551",
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "dMMM", "10 \\u0E15.\\u0E04. 2550 \\u2013 10 \\u0E15.\\u0E04. 2551",
 
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "MMMy", "\\u0E15.\\u0E04. 2550 \\u2013 \\u0E15.\\u0E04. 2551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "EdMy", "\\u0E1E. 10/10/2550 \\u2013 \\u0E28. 10/10/2551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "dMy", "10/10/2550 \\u2013 10/10/2551",
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "EdMy", "ส. 10/10/2550 – อา. 10/10/2551",
 
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "dMy", "10/10/2550 \\u2013 10/10/2551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "My", "10/2550 \\u2013 10/2551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "EdM", "\\u0E1E. 10/10/2550 \\u2013 \\u0E28. 10/10/2551",
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "EdMy", "\\u0E2A. 10/10/2550 \\u2013 \\u0E2D\\u0E32. 10/10/2551",
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "My", "10/2550 \\u2013 10/2551",
 
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "EdM", "ส. 10/10/2550 – อา. 10/10/2551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "y", "2550\\u20132551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2551 10 10 10:10:10", "M", "10/2550 \\u2013 10/2551",
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "y", "2550\\u20132551",
 
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "EdM", "\\u0E2A. 10/10/2550 \\u2013 \\u0E2D\\u0E32. 10/10/2551",
+                "th", "2550 10 10 10:10:10", "2551 10 10 10:10:10", "M", "10/2550 \\u2013 10/2551",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2550 11 10 10:10:10", "EEEEdMMMy", "\\u0E27\\u0E31\\u0E19\\u0E1E\\u0E38\\u0E18\\u0E17\\u0E35\\u0E48 10 \\u0E15.\\u0E04. \\u2013 \\u0E27\\u0E31\\u0E19\\u0E40\\u0E2A\\u0E32\\u0E23\\u0E4C\\u0E17\\u0E35\\u0E48 10 \\u0E1E.\\u0E22. 2550",
 
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "EEEEdMMMy", "วันเสาร์ที่ 10 ต.ค. – วันอังคารที่ 10 พ.ย. 2550",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2550 11 10 10:10:10", "dMMM", "10 \\u0E15.\\u0E04. \\u2013 10 \\u0E1E.\\u0E22.",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2550 11 10 10:10:10", "MMMy", "\\u0E15.\\u0E04.\\u2013\\u0E1E.\\u0E22. 2550",
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "dMMM", "10 \\u0E15.\\u0E04. \\u2013 10 \\u0E1E.\\u0E22.",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2550 11 10 10:10:10", "dM", "10/10 \\u2013 10/11",
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "EEEEdMMMy", "\\u0E27\\u0E31\\u0E19\\u0E40\\u0E2A\\u0E32\\u0E23\\u0E4C\\u0E17\\u0E35\\u0E48 10 \\u0E15.\\u0E04. \\u2013 \\u0E27\\u0E31\\u0E19\\u0E2D\\u0E31\\u0E07\\u0E04\\u0E32\\u0E23\\u0E17\\u0E35\\u0E48 10 \\u0E1E.\\u0E22. 2550",
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "MMMy", "\\u0E15.\\u0E04.\\u2013\\u0E1E.\\u0E22. 2550",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2550 11 10 10:10:10", "My", "10/2550 \\u2013 11/2550",
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "dM", "10/10 \\u2013 10/11",
 
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "My", "10/2550 \\u2013 11/2550",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2550 11 10 10:10:10", "d", "10/10 \\u2013 10/11",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2550 11 10 10:10:10", "y", "\u0E1E.\u0E28. 2550",
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "d", "10/10 \\u2013 10/11",
 
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "y", "2550",
 
-                "th", "BE 2550 10 10 10:10:10", "BE 2550 11 10 10:10:10", "MMM", "\u0E15.\u0E04.\u2013\u0E1E.\u0E22.",
 
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "MMM", "ต.ค. – พ.ย.",
+
+                "th", "2550 10 10 10:10:10", "2550 11 10 10:10:10", "y", "2550",
                 // Tests for Japanese calendar with eras, including new era in 2019 (Heisei 31 through April 30, then new era)
 
                 "en-u-ca-japanese", "H 31 03 15 09:00:00", "H 31 04 15 09:00:00", "GyMMMd", "Mar 15 \u2013 Apr 15, 31 Heisei",
@@ -716,6 +722,7 @@ public class DateIntervalFormatTest extends TestFmwk {
 
                 "ja-u-ca-japanese", "H 31 04 15 09:00:00", DateFormat.JP_ERA_2019_NARROW+" 1 05 15 09:00:00", "GGGGGyMd", "H31/04/15\uFF5E"+DateFormat.JP_ERA_2019_NARROW+"1/05/15",
 
+                // Android patch end.
         };
         expect(DATA, DATA.length);
     }
diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/util/ICUResourceBundleTest.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/util/ICUResourceBundleTest.java
index 28f77b7dc..6294f0ec2 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/util/ICUResourceBundleTest.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/util/ICUResourceBundleTest.java
@@ -754,6 +754,7 @@ public final class ICUResourceBundleTest extends TestFmwk {
 
     @Test
     public void TestFunctionalEquivalent(){
+       // Android patch: Force default Gregorian calendar.
        String[] calCases = {
        //  avail    locale                              equiv
            "t",     "en_US_POSIX",                      "en@calendar=gregorian",
@@ -761,10 +762,11 @@ public final class ICUResourceBundleTest extends TestFmwk {
            "f",     "ja_JP_TOKYO@calendar=japanese",    "ja@calendar=japanese",
            "t",     "sr@calendar=gregorian",            "sr@calendar=gregorian",
            "t",     "en",                               "en@calendar=gregorian",
-           "t",     "th_TH",                            "th@calendar=buddhist",
+           "t",     "th_TH",                            "th@calendar=gregorian",
            "t",     "th_TH@calendar=gregorian",         "th@calendar=gregorian",
-           "f",     "th_TH_Bangkok",                    "th@calendar=buddhist",
+           "f",     "th_TH_Bangkok",                    "th@calendar=gregorian",
        };
+       // Android patch end.
 
        logln("Testing functional equivalents for calendar...");
        getFunctionalEquivalentTestCases(ICUData.ICU_BASE_NAME,