--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/Collections/Frequency.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2003 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug     4193200
+ * @summary Basic test for Collections.frequency
+ * @author  Josh Bloch
+ *
+ * @compile -source 1.5 Frequency.java
+ * @run main Frequency
+ */
+
+import java.util.*;
+
+public class Frequency {
+    final static int N = 100;
+    public static void main(String args[]) {
+        test(new ArrayList<Integer>());
+        test(new LinkedList<Integer>());
+    }
+
+    static void test(List<Integer> list) {
+        for (int i = 0; i < N; i++)
+            for (int j = 0; j < i; j++)
+                list.add(i);
+        Collections.shuffle(list);
+
+        for (int i = 0; i < N; i++)
+            if (Collections.frequency(list, i) != i)
+                throw new RuntimeException(list.getClass() + ": " + i);
+    }
+}