--- a/jdk/src/java.base/share/classes/java/text/DateFormatSymbols.java	Thu Mar 03 22:55:41 2016 -0800
+++ b/jdk/src/java.base/share/classes/java/text/DateFormatSymbols.java	Wed Mar 02 23:28:59 2016 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2016, 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
@@ -606,7 +606,7 @@
         try
         {
             DateFormatSymbols other = (DateFormatSymbols)super.clone();
-            copyMembers(this, other);
+            copyMembers(new SymbolsCacheEntry(locale), other);
             return other;
         } catch (CloneNotSupportedException e) {
             throw new InternalError(e);
@@ -669,7 +669,7 @@
     /**
      * Cache to hold DateFormatSymbols instances per Locale.
      */
-    private static final ConcurrentMap<Locale, SoftReference<DateFormatSymbols>> cachedInstances
+    private static final ConcurrentMap<Locale, SoftReference<SymbolsCacheEntry>> cachedInstances
         = new ConcurrentHashMap<>(3);
 
     private transient int lastZoneIndex;
@@ -683,10 +683,10 @@
         locale = desiredLocale;
 
         // Copy values of a cached instance if any.
-        SoftReference<DateFormatSymbols> ref = cachedInstances.get(locale);
-        DateFormatSymbols dfs;
-        if (ref != null && (dfs = ref.get()) != null) {
-            copyMembers(dfs, this);
+        SoftReference<SymbolsCacheEntry> ref = cachedInstances.get(locale);
+        SymbolsCacheEntry sce;
+        if (ref != null && (sce = ref.get()) != null) {
+            copyMembers(sce, this);
             return;
         }
 
@@ -717,11 +717,11 @@
         weekdays = toOneBasedArray(resource.getStringArray("DayNames"));
         shortWeekdays = toOneBasedArray(resource.getStringArray("DayAbbreviations"));
 
-        // Put a clone in the cache
-        ref = new SoftReference<>((DateFormatSymbols)this.clone());
-        SoftReference<DateFormatSymbols> x = cachedInstances.putIfAbsent(locale, ref);
+        sce = new SymbolsCacheEntry(locale);
+        ref = new SoftReference<>(sce);
+        SoftReference<SymbolsCacheEntry> x = cachedInstances.putIfAbsent(locale, ref);
         if (x != null) {
-            DateFormatSymbols y = x.get();
+            SymbolsCacheEntry y = x.get();
             if (y == null) {
                 // Replace the empty SoftReference with ref.
                 cachedInstances.put(locale, ref);
@@ -812,7 +812,7 @@
      * @param src the source DateFormatSymbols.
      * @param dst the target DateFormatSymbols.
      */
-    private void copyMembers(DateFormatSymbols src, DateFormatSymbols dst)
+    private void copyMembers(SymbolsCacheEntry src, DateFormatSymbols dst)
     {
         dst.eras = Arrays.copyOf(src.eras, src.eras.length);
         dst.months = Arrays.copyOf(src.months, src.months.length);
@@ -821,7 +821,7 @@
         dst.shortWeekdays = Arrays.copyOf(src.shortWeekdays, src.shortWeekdays.length);
         dst.ampms = Arrays.copyOf(src.ampms, src.ampms.length);
         if (src.zoneStrings != null) {
-            dst.zoneStrings = src.getZoneStringsImpl(true);
+            dst.zoneStrings = getZoneStringsImpl(true);
         } else {
             dst.zoneStrings = null;
         }
@@ -842,4 +842,43 @@
         }
         stream.defaultWriteObject();
     }
+
+    private static class SymbolsCacheEntry {
+
+        final String eras[];
+        final String months[];
+        final String shortMonths[];
+        final String weekdays[];
+        final String shortWeekdays[];
+        final String ampms[];
+        final String zoneStrings[][];
+        final String localPatternChars;
+
+        SymbolsCacheEntry(Locale locale) {
+            // Initialize the fields from the ResourceBundle for locale.
+            LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(DateFormatSymbolsProvider.class, locale);
+            // Avoid any potential recursions
+            if (!(adapter instanceof ResourceBundleBasedAdapter)) {
+                adapter = LocaleProviderAdapter.getResourceBundleBased();
+            }
+            ResourceBundle resource = ((ResourceBundleBasedAdapter) adapter).getLocaleData().getDateFormatData(locale);
+            if (resource.containsKey("Eras")) {
+                this.eras = resource.getStringArray("Eras");
+            } else if (resource.containsKey("long.Eras")) {
+                this.eras = resource.getStringArray("long.Eras");
+            } else if (resource.containsKey("short.Eras")) {
+                this.eras = resource.getStringArray("short.Eras");
+            } else {
+                this.eras = null;
+            }
+            this.months = resource.getStringArray("MonthNames");
+            this.shortMonths = resource.getStringArray("MonthAbbreviations");
+            this.weekdays = toOneBasedArray(resource.getStringArray("DayNames"));
+            this.shortWeekdays = toOneBasedArray(resource.getStringArray("DayAbbreviations"));
+            this.ampms = resource.getStringArray("AmPmMarkers");
+            this.zoneStrings = TimeZoneNameUtility.getZoneStrings(locale);
+            this.localPatternChars = resource.getString("DateTimePatternChars");
+
+        }
+    }
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/text/Format/DateFormat/DFSConstructorCloneTest.java	Wed Mar 02 23:28:59 2016 +0530
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2016, 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 8087104
+ * @summary Make sure that clone() method is not called from DateFormatSymbols constructor.
+ */
+import java.text.DateFormatSymbols;
+
+public class DFSymbolsCloneTest extends DateFormatSymbols {
+
+    private Foo foo;
+
+    public DFSymbolsCloneTest(Foo fooObj) {
+        if (fooObj == null) {
+            this.foo = new Foo();
+        } else {
+            this.foo = fooObj;
+        }
+    }
+
+    @Override
+    public Object clone() {
+        DFSymbolsCloneTest dfsclone = (DFSymbolsCloneTest) super.clone();
+        if (this.foo == null) {
+            throw new RuntimeException("Clone method should not be called from "
+                    + " Superclass(DateFormatSymbols) Constructor...");
+        } else {
+            dfsclone.foo = (Foo) this.foo.clone();
+        }
+        return dfsclone;
+    }
+
+    public static void main(String[] args) {
+        DFSymbolsCloneTest dfsctest = new DFSymbolsCloneTest(new Foo());
+    }
+}
+
+class Foo {
+
+    public Foo() {
+    }
+
+    @Override
+    protected Object clone() {
+        return new Foo();
+    }
+
+}