A Broker interceptor which updates a JMS Client's timestamp on the messagewith a broker timestamp. Useful when the clocks on client machines are knownto not be correct and you can only trust the time set on the broker machines.Enabling this plugin will break JMS compliance since the timestamp that theproducer sees on the messages after as send() will be different from thetimestamp the consumer will observe when he receives the message. This pluginis not enabled in the default ActiveMQ configuration.2 new attributes have been added which will allow the administrator some override controlover the expiration time for incoming messages:Attribute 'zeroExpirationOverride' can be used to apply an expirationtime to incoming messages with no expiration defined (messages that would never expire)Attribute 'ttlCeiling' can be used to apply a limit to the expiration time