diff -r b7465577320f -r f87353679927 test/jdk/java/math/BigInteger/largeMemory/StringConstructorOverflow.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/math/BigInteger/largeMemory/StringConstructorOverflow.java	Mon Oct 21 14:04:16 2019 +0800
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2013, 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 8021204
+ * @summary Test constructor BigInteger(String val, int radix) on very long string
+ * @requires os.maxMemory > 8g
+ * @run main/othervm -Xshare:off -Xmx8g StringConstructorOverflow
+ * @author Dmitry Nadezhin
+ */
+import java.math.BigInteger;
+
+public class StringConstructorOverflow {
+
+    // String with hexadecimal value pow(2,pow(2,34))+1
+    private static String makeLongHexString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append('1');
+        for (int i = 0; i < (1 << 30) - 1; i++) {
+            sb.append('0');
+        }
+        sb.append('1');
+        return sb.toString();
+    }
+
+    public static void main(String[] args) {
+        try {
+            BigInteger bi = new BigInteger(makeLongHexString(), 16);
+            if (bi.compareTo(BigInteger.ONE) <= 0) {
+                throw new RuntimeException("Incorrect result " + bi.toString());
+            }
+        } catch (ArithmeticException e) {
+            // expected
+            System.out.println("Overflow is reported by ArithmeticException, as expected");
+        } catch (OutOfMemoryError e) {
+            // possible
+            System.err.println("StringConstructorOverflow skipped: OutOfMemoryError");
+            System.err.println("Run jtreg with -javaoption:-Xmx8g");
+        }
+    }
+}