I am confused, in the code it is initialized to -1:

/**
 * The number of times a message will be redelivered after a recover or rollback.
 * The value <code>-1</code> means there is no configured limit.
 */
 public int redeliveryLimit =-1 ;

public void setRedeliveryLimit(int limit)
 {
 if (limit < 0)
 throw new IllegalArgumentException("Negative redelivery limit: " + limit);

 parameters.redeliveryLimit = limit;
 }