[jboss-cvs] JBossAS SVN: r62299 - branches/Branch_4_0/messaging/src/main/org/jboss/mq/sm.

[jboss-cvs-commits at lists.jboss.org]

Author: adrian at jboss.org
Date: 2007-04-12 06:53:43 -0400 (Thu, 12 Apr 2007)
New Revision: 62299

Modified:
   branches/Branch_4_0/messaging/src/main/org/jboss/mq/sm/AbstractStateManager.java
Log:
[JBAS-4324] - Fix race condition in client id checking

Modified: branches/Branch_4_0/messaging/src/main/org/jboss/mq/sm/AbstractStateManager.java
===================================================================
--- branches/Branch_4_0/messaging/src/main/org/jboss/mq/sm/AbstractStateManager.java	2007-04-12 10:52:04 UTC (rev 62298)
+++ branches/Branch_4_0/messaging/src/main/org/jboss/mq/sm/AbstractStateManager.java	2007-04-12 10:53:43 UTC (rev 62299)
@@ -190,16 +190,13 @@
 
    public void addLoggedOnClientId(String ID) throws JMSException
    {
+      checkLoggedOnClientId(ID);
+
       synchronized (loggedOnClientIds)
       {
          if (loggedOnClientIds.contains(ID))
             throw new InvalidClientIDException("This client id '" + ID + "' is already registered!");
-      }
-      
-      checkLoggedOnClientId(ID);
 
-      synchronized (loggedOnClientIds)
-      {
          loggedOnClientIds.add(ID);
       }
       if (log.isTraceEnabled())