Error while delivering a failed message ATG

Question

Once i select the allowMessageDelays to false i get my message in the error queue but if i select it as true then the message gets saved in the dms_limbo tables and we get the following error infinite times.I have given the maximum attempt as 3 but in log i can see every time it says the attempt as 1 .
I want the allowMessageDelays as true and data to be saved in error queue.
/atg/dynamo/messaging/MessagingManager  /com//merch/listener/MenuItemFullListener: state: MsgId=ID:980000; #=1; Max#=3
/atg/dynamo/messaging/MessagingManager  /com//merch/listener/MenuItemFullListener: Attempt #2 (IDC); Limbo message ID:980000
/atg/dynamo/messaging/MessagingManager  /com//merch/listener/MenuItemFullListener: delay java.lang.String from port DEFAULT
/atg/dynamo/messaging/MessagingManager  limbo : poll->initiating
/atg/dynamo/messaging/MessagingManager  limbo : poll->found 1 msg(s)
/atg/dynamo/messaging/MessagingManager  /com//merch/listener/MenuItemFullListener: state: MsgId=ID:980000; #=1; Max#=3
/atg/dynamo/messaging/MessagingManager  /com//merch/listener/MenuItemFullListener: Attempt #2 (ML); Deliver message ID:980000
/atg/dynamo/service/Scheduler   Error while handling scheduled job MSG-LIMBO-POLL       java.lang.NullPointerException
Please please Help..!!

Answer 1

Thanks David for your reply,
I purposely gave an error to check if any entry is made in the dms_queue_entry table when there is an error while listening from a topic.
As per my understanding ..
when a topic sends a data to a listener and there is some error while reading it, topic will try to redeliver the data as many times as specified(<max-attempts>3</max-attempts>). If we specify the delay(<delay>60000</delay>) then the topic will try to send the data to the listener first time and if fails will store the data in the limbo tables and then will again try to redeliver the data after the specifed time.
Now what is happening is, it try to deliver the data first time and it fails, it store the data in the limbo tables . Now after 1 minute(60000 millisec) it will try to redeliver the data(2nd attempt) to the listener from the msgLimbo tables. but we are getting a null pointer exception as it is unable to poll data from the limbo tables and it throws a null pointer exception.
Correct me if i am wrong..!!