--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/ArrayList/EnsureCapacity.java	Tue Oct 19 10:02:25 2010 -0700
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2010, 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 6992121
+ * @summary Test the ArrayList.ensureCapacity() and Vector.ensureCapacity
+ *    method with negative minimumCapacity input argument.
+ */
+
+import java.util.ArrayList;
+import java.util.Vector;
+
+public class EnsureCapacity {
+    public static void main(String[] args) {
+        testArrayList();
+        testVector();
+    }
+
+    private static void checkCapacity(int before, int after) {
+        if (before != after) {
+            throw new RuntimeException("capacity is expected to be unchanged: " +
+                "before=" + before + " after=" + after);
+        }
+    }
+
+    private static void testArrayList() {
+        ArrayList<String> al = new ArrayList<String>();
+        al.add("abc");
+        al.ensureCapacity(Integer.MIN_VALUE);
+
+        // there is no method to query the capacity of ArrayList
+        // so before and after capacity are not checked
+    }
+
+    private static void testVector() {
+        Vector<String> vector = new Vector<String>();
+        vector.add("abc");
+
+        int cap = vector.capacity();
+        vector.ensureCapacity(Integer.MIN_VALUE);
+        checkCapacity(cap, vector.capacity());
+    }
+}