--- /dev/null	2018-07-23 14:48:31.000000000 -0700
+++ new/test/jdk/java/io/ByteArrayOutputStream/ArraySize.java	2018-07-23 14:48:31.000000000 -0700
@@ -0,0 +1,55 @@
+/*
+ * 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
+ * @requires os.maxMemory > 2g
+ * @bug 8206403
+ * @run testng/othervm -Xmx2g ArraySize
+ * @summary Check that unacceptable backing array sizes are disallowed.
+ */
+
+import java.io.ByteArrayOutputStream;
+import org.testng.annotations.Test;
+import static org.testng.Assert.*;
+
+public class ArraySize {
+    @Test(expectedExceptions = IllegalArgumentException.class)
+    public static void underflowConstructor() throws Exception {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream(-1);
+    }
+
+    @Test(expectedExceptions = IllegalArgumentException.class)
+    public static void overflowConstructor() throws Exception {
+        ByteArrayOutputStream baos =
+            new ByteArrayOutputStream(Integer.MAX_VALUE - 4);
+    }
+
+    @Test(expectedExceptions = OutOfMemoryError.class)
+    public static void overflowSize() {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        byte[] b = new byte[(Integer.MAX_VALUE - 3)/2];
+        baos.write(b, 0, b.length);
+        baos.write(b, 0, b.length);
+    }
+}