--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/text/Format/NumberFormat/BigDecimalCompatibilityTest.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2003, 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 4018937
+ * @summary Confirm that DecimalFormat.parse() parses BigDecimal and BigInteger as expected.
+ */
+
+import java.math.*;
+import java.text.*;
+import java.util.*;
+
+public class BigDecimalCompatibilityTest {
+
+    static boolean err = false;
+
+    static final String[] input_data = {
+        "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+        "1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
+    };
+    static final String[] exponents = {
+        "E-100", "E100", "E-900", "E900", ""
+    };
+    static final int[] multipliers = {
+        -1, 1, -100, 100, -9999, 9999
+    };
+
+    public static void main(String[] args) throws Exception {
+        Locale loc = Locale.getDefault();
+        Locale.setDefault(Locale.US);
+
+        testBigDecimal();
+        testBigInteger();
+
+        Locale.setDefault(loc);
+
+        if (err) {
+            throw new RuntimeException("Error: Unexpected value");
+        }
+    }
+
+    static private void testBigDecimal() {
+        DecimalFormat df = new DecimalFormat();
+        df.setParseBigDecimal(true);
+        df.setMaximumFractionDigits(Integer.MAX_VALUE);
+
+        for (int i = 0; i < input_data.length; i++) {
+            for (int j = 0; j < input_data.length; j++) {
+                for (int k = 0; k < input_data.length; k++) {
+                    for (int l = 0; l < input_data.length; l++) {
+                        for (int m = 0; m < exponents.length; m++) {
+                            String s = input_data[i] + input_data[j] + '.' +
+                                       input_data[k] + input_data[l] +
+                                       exponents[m];
+                            for (int n = 0; n < multipliers.length; n++) {
+                                test(df, s, multipliers[n]);
+                                test(df, '-'+s, multipliers[n]);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    static private void testBigInteger() {
+        DecimalFormat df = new DecimalFormat();
+        df.setParseBigDecimal(true);
+        df.setMaximumFractionDigits(Integer.MAX_VALUE);
+
+        for (int i = 0; i < input_data.length; i++) {
+            for (int j = 0; j < input_data.length; j++) {
+                String s = input_data[i] + input_data[j];
+                for (int k = 0; k < multipliers.length; k++) {
+                    test(df, s, multipliers[k]);
+                    test(df, '-'+s, multipliers[k]);
+                }
+            }
+        }
+    }
+
+    static void test(DecimalFormat df, String s, int multiplier) {
+        df.setMultiplier(multiplier);
+
+        Number num = null;
+        try {
+            num = df.parse(s);
+        }
+        catch (ParseException e) {
+            err = true;
+            System.err.println("Failed: Exception occurred: " + e.getMessage());
+            return;
+        }
+
+        BigDecimal bd = new BigDecimal(s);
+        try {
+           bd = bd.divide(new BigDecimal(multiplier));
+        }
+        catch (ArithmeticException e) {
+           bd = bd.divide(new BigDecimal(multiplier), RoundingMode.HALF_EVEN);
+        }
+        check(num, bd, multiplier);
+    }
+
+    static void check(Number got, BigDecimal expected, int multiplier) {
+        if (!got.equals(expected)) {
+            err = true;
+            System.err.println("Failed: got:" + got +
+                               ", expected: " + expected +
+                               ", multiplier=" + multiplier);
+        }
+    }
+}