--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/com/sun/jndi/ldap/pool/PoolCleaner.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2002 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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package com.sun.jndi.ldap.pool;
+
+/**
+ * Thread that wakes up periodically and closes expired, unused connections.
+ *
+ * @author Rosanna Lee
+ */
+final public class PoolCleaner extends Thread {
+    final private Pool[] pools;
+    final private long period;
+
+    /**
+     * @param period ms to wait between cleaning
+     * @param pools non-null array of Pools to clean
+     */
+    public PoolCleaner(long period, Pool[] pools) {
+        super();
+        this.period = period;
+        this.pools = (Pool[]) pools.clone();
+        setDaemon(true);
+    }
+
+    public void run() {
+        long threshold;
+        while (true) {
+            synchronized (this) {
+                // Wait for duration of period ms
+                try {
+                    wait(period);
+                } catch (InterruptedException ignore) {
+                }
+
+                // Connections idle since threshold have expired
+                threshold = System.currentTimeMillis() - period;
+                for (int i = 0; i < pools.length; i++) {
+                    if (pools[i] != null) {
+                        pools[i].expire(threshold);
+                    }
+                }
+            }
+        }
+    }
+}