Fixed problems with restarting HTTPSessionManager.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@6052 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/wildfire/http/HttpSessionManager.java

@@ -62,8 +62,8 @@ public class HttpSessionManager {
 
     private SessionManager sessionManager;
     private Map<String, HttpSession> sessionMap = new ConcurrentHashMap<String, HttpSession>();
-    private Timer inactivityTimer = new Timer("HttpSession Inactivity Timer");
-    private TimerTask inactivityThread = new HttpSessionReaper();
+    private Timer inactivityTimer;
+    private TimerTask inactivityThread;
 
     static {
         // Set the default read idle timeout. If none was set then assume 30 minutes
@@ -77,12 +77,16 @@ public class HttpSessionManager {
     }
 
     public void start() {
+        inactivityThread = new HttpSessionReaper();
+        inactivityTimer = new Timer("HttpSession Inactivity Timer");
         inactivityTimer.schedule(inactivityThread, 30 * JiveConstants.SECOND,
                 30 * JiveConstants.SECOND);
     }
 
     public void stop() {
         inactivityTimer.cancel();
+        inactivityTimer = null;
+        inactivityThread = null;
         for(HttpSession session : sessionMap.values()) {
             session.close();
         }