No need to clean up connection if it's being closed.

git-svn-id: https://svn.apache.org/repos/asf/incubator/activemq/trunk@382960 13f79535-47bb-0310-9956-ffa450edef68

activemq-core/src/main/java/org/apache/activemq/ActiveMQConnection.java

@@ -1580,12 +1580,13 @@ public class ActiveMQConnection extends DefaultTransportListener implements Conn
     
     protected void transportFailed(Throwable error){
         transportFailed.set(true);
+        if (!closed.get() && !closing.get()) {
             try{
                 cleanup();
             }catch(JMSException e){
                log.warn("Cleanup failed",e);
             }
-        
+        }
     }
 
     public void setCopyMessageOnSend(boolean copyMessageOnSend) {