undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/util/Calendar/CalendarDataTest.java
+++ b/test/jdk/java/util/Calendar/CalendarDataTest.java
@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2017, 2025, 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.
+ */
+
+/**
+ * @test
+ * @bug 8190918 8202537 8221432 8231273 8265315 8284840 8333582
+ *      8354548
+ * @summary Tests for region dependent calendar data, i.e.,
+ *      firstDayOfWeek and minimalDaysInFirstWeek.
+ * @modules jdk.localedata
+ * @run main CalendarDataTest
+ */
+
+import java.util.Calendar;
+import java.util.List;
+import java.util.Locale;
+import java.util.Optional;
+import java.util.stream.IntStream;
+
+public class CalendarDataTest {
+
+    // golden data from CLDR
+    private static final List<List<String>> FIRSTDAYDATA = List.of(
+        List.of("1", "AG AS BD BR BS BT BW BZ CA CO DM DO ET GT " +
+            "GU HK HN ID IL IN IS JM JP KE KH KR LA MH MM MO MT MX MZ " +
+            "NI NP PA PE PH PK PR PT PY SA SG SV TH TT TW UM US VE " +
+            "VI WS YE ZA ZW"),
+        List.of("2",   "001 AD AE AI AL AM AN AR AT AU AX AZ BA BE BG BM BN BY " +
+            "CH CL CM CN CR CY CZ DE DK EC EE ES FI FJ FO FR GB GE GF GP " +
+            "GR HR HU IE IT KG KZ LB LI LK LT LU LV MC MD ME MK MN MQ " +
+            "MY NL NO NZ PL RE RO RS RU SE SI SK SM TJ TM TR UA UY UZ " +
+            "VA VN XK"),
+        List.of("6", "MV"),
+        List.of("7", "AF BH DJ DZ EG IQ IR JO KW LY OM QA SD SY"));
+
+    private static final List<List<String>> MINDAYSDATA = List.of(
+        List.of("1", "001 GU UM US VI"),
+        List.of("4", "AD AN AT AX BE BG CH CZ DE DK EE ES FI FJ FO FR " +
+            "GB GF GG GI GP GR HU IE IM IS IT JE LI LT LU MC MQ NL NO " +
+            "PL PT RE RU SE SJ SK SM VA"));
+
+    public static void main(String... args) throws Exception {
+        // world
+        Calendar cal = Calendar.getInstance(Locale.of("", "001"));
+        checkResult("001",
+            cal.getFirstDayOfWeek(),
+            cal.getMinimalDaysInFirstWeek());
+
+        // two letter country codes
+        IntStream.range(0x41, 0x5b)
+            .forEach(c1 -> {
+                IntStream.range(0x41, 0x5b)
+                    .mapToObj(c2 -> String.valueOf((char)c1) + String.valueOf((char)c2))
+                    .forEach(region -> {
+                        Calendar c = Calendar.getInstance(Locale.of("", region));
+                        checkResult(region,
+                                c.getFirstDayOfWeek(),
+                                c.getMinimalDaysInFirstWeek());
+                    });
+            });
+    }
+
+    private static void checkResult(String region, int firstDay, int minDays) {
+        // first day of week
+        int expected = Integer.parseInt(findEntry(region, FIRSTDAYDATA)
+            .orElse(findEntry("001", FIRSTDAYDATA).orElse(List.of("1")))
+            .get(0));
+        if (firstDay != expected) {
+            throw new RuntimeException("firstDayOfWeek is incorrect for the region: " +
+                    region + ". Returned: " + firstDay + ", Expected: " + expected);
+        }
+
+        // minimal days in first week
+        expected = Integer.parseInt(findEntry(region, MINDAYSDATA)
+            .orElse(findEntry("001", MINDAYSDATA).orElse(List.of("1")))
+            .get(0));
+        if (minDays != expected) {
+            throw new RuntimeException("minimalDaysInFirstWeek is incorrect for the region: " +
+                    region + ". Returned: " + minDays + ", Expected: " + expected);
+        }
+    }
+
+    private static Optional<List<String>> findEntry(String region, List<List<String>> data) {
+        return data.stream()
+            .filter(l -> l.get(1).contains(region))
+            .findAny();
+    }
+}
+