I'm using the 7.40.0 Cumulocity Java Client SDK to subscribe to real-time notifications. I'm able to get notifications but after leaving the client running for a while, it seems to stop listening and I'm no longer able to retrieve notifications.
Has anyone encountered this scenario?
WARN 2017-01-03 08:44:49,727 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.ConnectionHeartBeatWatcher: canceling the long poll request because of inactivity
DEBUG 2017-01-03 08:44:49,727 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: canceling [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, channel=/meta/connect, id=16, connectionType=long-polling}]
DEBUG 2017-01-03 08:44:49,727 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: stopping heartbeat watcher [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, channel=/meta/connect, id=16, connectionType=long-polling}]
DEBUG 2017-01-03 08:44:50,728 [pool-21-thread-1] com.cumulocity.sdk.client.notification.CumulocityLongPollingTransport.1365985548: sending messages [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=19, connectionType=long-polling}]
DEBUG 2017-01-03 08:44:50,728 [pool-21-thread-1] com.cumulocity.sdk.client.notification.MessageExchange: starting heartbeat watcher [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=19, connectionType=long-polling}]
DEBUG 2017-01-03 08:44:51,710 [CumulocityLongPollingTransport-scheduler-1] com.cumulocity.sdk.client.notification.MessageExchange: wait for response headers [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=19, connectionType=long-polling}]
DEBUG 2017-01-03 08:44:51,710 [CumulocityLongPollingTransport-scheduler-1] com.cumulocity.sdk.client.notification.MessageExchange: recived response headers [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=19, connectionType=long-polling}]
DEBUG 2017-01-03 08:44:51,710 [CumulocityLongPollingTransport-scheduler-1] com.cumulocity.sdk.client.notification.MessageExchange: getting heartbeants POST https://msc.cumulocity.com//cep/realtime returned a response status of 200 OK
DEBUG 2017-01-03 08:44:51,710 [CumulocityLongPollingTransport-scheduler-1] com.cumulocity.sdk.client.notification.MessageExchange: new messages recived
DEBUG 2017-01-03 08:44:51,711 [CumulocityLongPollingTransport-scheduler-1] com.cumulocity.sdk.client.notification.MessageExchange: Received messages [{channel=/meta/connect, id=19, advice={reconnect=retry, interval=0, timeout=5400000}, successful=true}]
DEBUG 2017-01-03 08:44:51,711 [CumulocityLongPollingTransport-scheduler-1] com.cumulocity.sdk.client.notification.MessageExchange: stopping heartbeat watcher [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=19, connectionType=long-polling}]
DEBUG 2017-01-03 08:44:51,711 [pool-21-thread-1] com.cumulocity.sdk.client.notification.CumulocityLongPollingTransport.1365985548: sending messages [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, channel=/meta/connect, id=23, connectionType=long-polling}]
DEBUG 2017-01-03 08:44:51,711 [pool-21-thread-1] com.cumulocity.sdk.client.notification.MessageExchange: starting heartbeat watcher [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, channel=/meta/connect, id=23, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:51,711 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: canceling [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, channel=/meta/connect, id=23, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:51,711 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: stopping heartbeat watcher [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, channel=/meta/connect, id=23, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:52,711 [pool-21-thread-1] com.cumulocity.sdk.client.notification.CumulocityLongPollingTransport.1365985548: sending messages [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=26, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:52,712 [pool-21-thread-1] com.cumulocity.sdk.client.notification.MessageExchange: starting heartbeat watcher [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=26, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:53,659 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: wait for response headers [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=26, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:53,659 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: recived response headers [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=26, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:53,659 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: getting heartbeants POST https://msc.cumulocity.com//cep/realtime returned a response status of 200 OK
DEBUG 2017-01-03 08:56:53,660 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: new messages recived
DEBUG 2017-01-03 08:56:53,661 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: Received messages [{channel=/meta/connect, id=26, advice={reconnect=retry, interval=0, timeout=5400000}, successful=true}]
DEBUG 2017-01-03 08:56:53,661 [CumulocityLongPollingTransport-scheduler-0] com.cumulocity.sdk.client.notification.MessageExchange: stopping heartbeat watcher [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, advice={timeout=0}, channel=/meta/connect, id=26, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:53,661 [pool-21-thread-1] com.cumulocity.sdk.client.notification.CumulocityLongPollingTransport.1365985548: sending messages [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, channel=/meta/connect, id=28, connectionType=long-polling}]
DEBUG 2017-01-03 08:56:53,661 [pool-21-thread-1] com.cumulocity.sdk.client.notification.MessageExchange: starting heartbeat watcher [{clientId=4b11irnlptb55g4rs3hauu1ctjpy, channel=/meta/connect, id=28, connectionType=long-polling}]