8139107: DateTimeFormatter with Locale.UK throw a NullPointerException when parsing zone

Reviewed-by: naoto

src/share/classes/sun/util/resources/en/TimeZoneNames_en_GB.java

@@ -47,7 +47,8 @@ public final class TimeZoneNames_en_GB extends TimeZoneNamesBundle {
     protected final Object[][] getContents() {
         return new Object[][] {
             {"Europe/London", new String[] {"Greenwich Mean Time", "GMT",
-                                            "British Summer Time", "BST"}},
+                                            "British Summer Time", "BST",
+                                            "British Time", "BT"}},
         };
     }
 }

src/share/classes/sun/util/resources/hi/TimeZoneNames_hi.java

@@ -40,7 +40,8 @@ public final class TimeZoneNames_hi extends TimeZoneNamesBundle {
             {"Asia/Calcutta",
                 new String[] {
                     "\u092d\u093e\u0930\u0924\u0940\u092f \u0938\u092e\u092f", "IST",
-                    "\u092d\u093e\u0930\u0924\u0940\u092f \u0938\u092e\u092f", "IST"
+                    "\u092d\u093e\u0930\u0924\u0940\u092f \u0938\u092e\u092f", "IST",
+                    "\u092d\u093e\u0930\u0924\u0940\u092f \u0938\u092e\u092f", "IT"
                 }
             },
         };

test/sun/util/resources/TimeZone/Bug8139107.java

+/*
+ * Copyright (c) 2015, 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 8139107
+ * @summary Test that date parsing with DateTimeFormatter pattern
+ *   that contains timezone field doesn't trigger NPE. All supported
+ *   locales are tested.
+ * @run testng/othervm -Djava.locale.providers=JRE,SPI Bug8139107
+ */
+import java.time.format.DateTimeFormatter;
+import java.util.Locale;
+import org.testng.annotations.Test;
+
+public class Bug8139107 {
+
+    @Test
+    public void testSupportedLocales() {
+        for (Locale loc:Locale.getAvailableLocales()) {
+            testLocale(loc);
+        }
+    }
+
+    //Test one locale
+    void testLocale(Locale tl) {
+        System.out.println("Locale:" + tl);
+        DateTimeFormatter inputDateTimeFormat = DateTimeFormatter
+                .ofPattern(pattern)
+                .withLocale(tl);
+        System.out.println("Parse result: " + inputDateTimeFormat.parse(inputDate));
+    }
+
+    // Input date time string with short time zone name
+    static final String inputDate = "06-10-2015 18:58:04 MSK";
+    // Pattern with time zone field
+    static final String pattern = "dd-MM-yyyy HH:mm:ss z";
+}
+