--- /dev/null	2018-11-28 11:17:03.220000000 +0530
+++ new/test/jdk/java/text/Format/CompactNumberFormat/TestEquality.java	2018-11-28 14:09:15.142276887 +0530
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2018, 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 8177552
+ * @summary Checks the equals and hashCode method of CompactNumberFormat
+ * @modules jdk.localedata
+ * @run testng/othervm TestEquality
+ *
+ */
+
+import java.text.CompactNumberFormat;
+import java.text.DecimalFormatSymbols;
+import java.text.NumberFormat;
+import java.util.Locale;
+import org.testng.annotations.Test;
+
+public class TestEquality {
+
+    @Test
+    public void testEquality() {
+        CompactNumberFormat cnf1 = (CompactNumberFormat) NumberFormat
+                .getCompactNumberInstance(Locale.US, NumberFormat.Style.SHORT);
+
+        CompactNumberFormat cnf2 = (CompactNumberFormat) NumberFormat
+                .getCompactNumberInstance(Locale.US, NumberFormat.Style.SHORT);
+
+        // A custom compact instance with the same state as
+        // compact number instance of "en_US" locale with SHORT style
+        String decimalPattern = "#,##0.###";
+        String[] compactPatterns = new String[]{"", "", "", "0K", "00K", "000K", "0M", "00M", "000M", "0B", "00B", "000B", "0T", "00T", "000T"};
+        DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(Locale.US);
+        CompactNumberFormat cnf3 = new CompactNumberFormat(decimalPattern, symbols, compactPatterns);
+
+        // A compact instance created with different decimalPattern than cnf3
+        CompactNumberFormat cnf4 = new CompactNumberFormat("#,#0.0#", symbols, compactPatterns);
+
+        // A compact instance created with different format symbols than cnf3
+        CompactNumberFormat cnf5 = new CompactNumberFormat(decimalPattern,
+                DecimalFormatSymbols.getInstance(Locale.JAPAN), compactPatterns);
+
+        // A compact instance created with different compact patterns than cnf3
+        CompactNumberFormat cnf6 = new CompactNumberFormat(decimalPattern,
+                symbols, new String[]{"", "", "", "0K", "00K", "000K"});
+
+        // Checking reflexivity
+        if (!cnf1.equals(cnf1)) {
+            throw new RuntimeException("[testEquality() reflexivity FAILED: The compared"
+                    + " objects must be equal]");
+        }
+
+        // Checking symmetry, checking equality of two same objects
+        if (!cnf1.equals(cnf2) || !cnf2.equals(cnf1)) {
+            throw new RuntimeException("[testEquality() symmetry FAILED: The compared"
+                    + " objects must be equal]");
+        }
+
+        // Checking transitivity, three objects must be equal
+        if (!cnf1.equals(cnf2) || !cnf2.equals(cnf3) || !cnf1.equals(cnf3)) {
+            throw new RuntimeException("[testEquality() transitivity FAILED: The compared"
+                    + " objects must be equal]");
+        }
+
+        // Objects must not be equal as the decimalPattern is different
+        checkEquals(cnf3, cnf4, false, "1st", "different decimal pattern");
+
+        // Objects must not be equal as the format symbols instance is different
+        checkEquals(cnf3, cnf5, false, "2nd", "different format symbols");
+
+        // Objects must not be equal as the compact patters are different
+        checkEquals(cnf3, cnf6, false, "3rd", "different compact patterns");
+
+        // Changing the min integer digits of first object; objects must not
+        // be equal
+        cnf1.setMinimumIntegerDigits(5);
+        checkEquals(cnf1, cnf2, false, "4th", "different min integer digits");
+
+        // Changing the min integer digits of second object; objects must
+        // be equal
+        cnf2.setMinimumIntegerDigits(5);
+        checkEquals(cnf1, cnf2, true, "5th", "");
+
+        // Changing the grouping size of first object; objects must not
+        // be equal
+        cnf1.setGroupingSize(4);
+        checkEquals(cnf1, cnf2, false, "6th", "different grouping size");
+
+        // Changing the grouping size if second object; objects must be equal
+        cnf2.setGroupingSize(4);
+        checkEquals(cnf1, cnf2, true, "7th", "");
+
+        // Changing the parseBigDecimal of first object; objects must not
+        // be equal
+        cnf1.setParseBigDecimal(true);
+        checkEquals(cnf1, cnf2, false, "8th", "different parse big decimal");
+
+    }
+
+    private void checkEquals(CompactNumberFormat cnf1, CompactNumberFormat cnf2,
+            boolean mustEqual, String nthComparison, String message) {
+        if (cnf1.equals(cnf2) != mustEqual) {
+            if (mustEqual) {
+                throw new RuntimeException("[testEquality() " + nthComparison
+                        + " comparison FAILED: The compared objects must be equal]");
+            } else {
+                throw new RuntimeException("[testEquality() " + nthComparison
+                        + " comparison FAILED: The compared objects must"
+                        + " not be equal because of " + message + "]");
+            }
+        }
+    }
+
+    @Test
+    public void testHashCode() {
+        NumberFormat cnf1 = NumberFormat
+                .getCompactNumberInstance(Locale.JAPAN, NumberFormat.Style.SHORT);
+        NumberFormat cnf2 = NumberFormat
+                .getCompactNumberInstance(Locale.JAPAN, NumberFormat.Style.SHORT);
+
+        if (cnf1.hashCode() != cnf2.hashCode()) {
+            throw new RuntimeException("[testHashCode() FAILED: hashCode of the"
+                    + " compared objects must match]");
+        }
+    }
+
+    // Test the property of equals and hashCode i.e. two equal object must
+    // always have the same hashCode
+    @Test
+    public void testEqualsAndHashCode() {
+        NumberFormat cnf1 = NumberFormat
+                .getCompactNumberInstance(new Locale("hi", "IN"), NumberFormat.Style.SHORT);
+        cnf1.setMinimumIntegerDigits(5);
+        NumberFormat cnf2 = NumberFormat
+                .getCompactNumberInstance(new Locale("hi", "IN"), NumberFormat.Style.SHORT);
+        cnf2.setMinimumIntegerDigits(5);
+        if (cnf1.equals(cnf2)) {
+            if (cnf1.hashCode() != cnf2.hashCode()) {
+                throw new RuntimeException("[testEqualsAndHashCode() FAILED: two"
+                        + " equal objects must have same hashCode]");
+            }
+        } else {
+            throw new RuntimeException("[testEqualsAndHashCode() FAILED: The"
+                    + " compared objects must be equal]");
+        }
+    }
+
+}