--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/math/BigInteger/BitLengthOverflow.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2013, 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 6910473
+ * @summary Test that bitLength() is not negative
+ * @author Dmitry Nadezhin
+ */
+import java.math.BigInteger;
+
+public class BitLengthOverflow {
+
+    public static void main(String[] args) {
+        try {
+            BigInteger x = BigInteger.ONE.shiftLeft(Integer.MAX_VALUE); // x = pow(2,Integer.MAX_VALUE)
+            if (x.bitLength() != (1L << 31)) {
+                throw new RuntimeException("Incorrect bitLength() " + x.bitLength());
+            }
+            System.out.println("Surprisingly passed with correct bitLength() " + x.bitLength());
+        } catch (ArithmeticException e) {
+            // expected
+            System.out.println("Overflow is reported by ArithmeticException, as expected");
+        } catch (OutOfMemoryError e) {
+            // possible
+            System.err.println("BitLengthOverflow skipped: OutOfMemoryError");
+            System.err.println("Run jtreg with -javaoption:-Xmx8g");
+        }
+    }
+}