8278434: timeouts in test java/time/test/java/time/format/TestZoneTextPrinterParser.java

Reviewed-by: phh
Backport-of: 064ee6ae135366d59e9485b449a41d2b55811bbe

Author: RealLucy

src/java.base/share/classes/sun/util/cldr/CLDRTimeZoneNameProviderImpl.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -151,8 +151,8 @@ private void deriveFallbackName(String[] names, int index, Locale locale, boolea
 
         // Check parent locales first
         if (!exists(names, index)) {
-            CLDRLocaleProviderAdapter clpa = (CLDRLocaleProviderAdapter)LocaleProviderAdapter.forType(Type.CLDR);
-            var cands = clpa.getCandidateLocales("", locale);
+            var cands = ((CLDRLocaleProviderAdapter)LocaleProviderAdapter.forType(Type.CLDR))
+                    .getCandidateLocales("", locale);
             for (int i = 1; i < cands.size() ; i++) {
                 String[] parentNames = super.getDisplayNameArray(id, cands.get(i));
                 if (parentNames != null && !parentNames[index].isEmpty()) {
@@ -162,11 +162,6 @@ private void deriveFallbackName(String[] names, int index, Locale locale, boolea
             }
         }
 
-        // Region Fallback
-        if (regionFormatFallback(names, index, locale)) {
-            return;
-        }
-
         // Type Fallback
         if (noDST && typeFallback(names, index)) {
             return;
@@ -185,6 +180,11 @@ private void deriveFallbackName(String[] names, int index, Locale locale, boolea
             }
         }
 
+        // Region Fallback
+        if (regionFormatFallback(names, index, locale)) {
+            return;
+        }
+
         // last resort
         names[index] = toGMTFormat(id,
                                    index == INDEX_DST_LONG || index == INDEX_DST_SHORT,
@@ -230,6 +230,11 @@ private boolean typeFallback(String[] names, int index) {
     }
 
     private boolean regionFormatFallback(String[] names, int index, Locale l) {
+        if (index % 2 == 0) {
+            // ignore short names
+            return false;
+        }
+
         String id = names[INDEX_TZID];
         LocaleResources lr = LocaleProviderAdapter.forType(Type.CLDR).getLocaleResources(l);
         ResourceBundle fd = lr.getJavaTimeFormatData();

test/jdk/java/time/test/java/time/format/TestZoneTextPrinterParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2022, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -49,7 +49,7 @@
 
 /*
  * @test
- * @bug 8081022 8151876 8166875 8189784 8206980
+ * @bug 8081022 8151876 8166875 8189784 8206980 8278434
  * @key randomness
  */
 
@@ -59,6 +59,11 @@
 @Test
 public class TestZoneTextPrinterParser extends AbstractTestPrinterParser {
 
+    private static final Locale[] SAMPLE_LOCALES = {
+        Locale.US, Locale.UK, Locale.FRANCE, Locale.GERMANY, Locale.ITALY, Locale.forLanguageTag("es"),
+        Locale.forLanguageTag("pt-BR"), Locale.forLanguageTag("ru"),
+        Locale.CHINA, Locale.TAIWAN, Locale.JAPAN, Locale.KOREA, Locale.ROOT};
+
     protected static DateTimeFormatter getFormatter(Locale locale, TextStyle style) {
         return new DateTimeFormatterBuilder().appendZoneText(style)
                                              .toFormatter(locale)
@@ -68,7 +73,6 @@ protected static DateTimeFormatter getFormatter(Locale locale, TextStyle style)
     public void test_printText() {
         Random r = RandomFactory.getRandom();
         int N = 8;
-        Locale[] locales = Locale.getAvailableLocales();
         Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
         ZonedDateTime zdt = ZonedDateTime.now();
 
@@ -83,7 +87,7 @@ public void test_printText() {
                 zdt = zdt.withZoneSameLocal(ZoneId.of(zid));
                 TimeZone tz = TimeZone.getTimeZone(zid);
                 boolean isDST = tz.inDaylightTime(new Date(zdt.toInstant().toEpochMilli()));
-                for (Locale locale : locales) {
+                for (Locale locale : SAMPLE_LOCALES) {
                     String longDisplayName = tz.getDisplayName(isDST, TimeZone.LONG, locale);
                     String shortDisplayName = tz.getDisplayName(isDST, TimeZone.SHORT, locale);
                     if ((longDisplayName.startsWith("GMT+") && shortDisplayName.startsWith("GMT+"))
@@ -116,9 +120,8 @@ private void printText(Locale locale, ZonedDateTime zdt, TextStyle style, TimeZo
     }
 
     public void test_ParseText() {
-        Locale[] locales = new Locale[] { Locale.ENGLISH, Locale.JAPANESE, Locale.FRENCH };
         Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
-        for (Locale locale : locales) {
+        for (Locale locale : SAMPLE_LOCALES) {
             parseText(zids, locale, TextStyle.FULL, false);
             parseText(zids, locale, TextStyle.FULL, true);
             parseText(zids, locale, TextStyle.SHORT, false);

test/micro/org/openjdk/bench/java/text/ZoneStrings.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package org.openjdk.bench.java.text;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.State;
+
+import java.text.DateFormatSymbols;
+import java.util.Locale;
+
+@BenchmarkMode(Mode.SingleShotTime)
+@State(Scope.Thread)
+public class ZoneStrings {
+
+    @Benchmark
+    public void testZoneStrings() {
+        for (Locale l : Locale.getAvailableLocales()) {
+            new DateFormatSymbols(l).getZoneStrings();
+        }
+    }
+}