--- /dev/null	2019-11-20 20:54:48.000000000 -0800
+++ new/test/jdk/sun/text/resources/Format/Bug8234288.java	2019-11-20 20:54:47.000000000 -0800
@@ -0,0 +1,77 @@
+import java.util.TimeZone;
+
+/*
+ * Copyright (c) 2014, 2019, 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 8234288
+ * @modules jdk.localedata
+ * @summary updating time zone strings for Turkey Time
+ * @run main/othervm -Djava.locale.providers=JRE,SPI Bug8234288
+ */
+
+import java.util.Locale;
+import java.util.TimeZone;
+
+public class Bug8234288 {
+    private static Locale ENGLISH = new Locale("en");
+    private static String ZONE_EUROPE_ISTANBUL = "Europe/Istanbul";
+    private static String ZONE_ASIA_ISTANBUL = "Asia/Istanbul";
+    private static String ZONE_TURKEY = "Turkey";
+
+    private static String EXPECTED_TRT_LONG = "Turkey Time";
+    private static String EXPECTED_TRT_SHORT = "TRT";
+    private static String EXPECTED_TRST_LONG = "Turkey Summer Time";
+    private static String EXPECTED_TRST_SHORT = "TRST";
+
+    public static void main(String[] arg) {
+        int errors = testTurkeyTimeZone(ZONE_EUROPE_ISTANBUL)
+                    + testTurkeyTimeZone(ZONE_ASIA_ISTANBUL)
+                    + testTurkeyTimeZone(ZONE_TURKEY);
+
+        if (errors > 0) {
+            throw new RuntimeException();
+        }
+    }
+
+    private static int testTurkeyTimeZone(final String location) {
+        return testTimeZone(location, false, TimeZone.LONG, EXPECTED_TRT_LONG)
+             + testTimeZone(location, false, TimeZone.SHORT, EXPECTED_TRT_SHORT)
+             + testTimeZone(location, true, TimeZone.LONG, EXPECTED_TRST_LONG)
+             + testTimeZone(location, true, TimeZone.SHORT, EXPECTED_TRST_SHORT);
+    }
+
+    private static int testTimeZone(final String location, final boolean isSummerTime,
+                                    final int style, final String expected) {
+        String timezone = TimeZone.getTimeZone(location)
+                                  .getDisplayName(isSummerTime, style, ENGLISH);
+        if (!timezone.equals(expected)) {
+            System.err.println("wrong time zone string for location '" + location
+                              +"': got '" + timezone + "', expected'" + expected + "'");
+            return 1;
+        }
+
+        return 0;
+    }
+}
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