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Unpacking of baseline messages failed with error: {} : java.lang.ClassCastException : java.lang.ClassCastException

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Applies to

  • ONTAP 9.15.1P4
  • Active IQ Unified Manager(AIQUM) 9.14 with vApp

Issue

  • AIQUM is unable to connect to a specific ONTAP Select cluster.
  • au.log indicates Internal Runtime Error while polling cluster baseline data:

2026-05-27 09:56:05,045 INFO  [common-pool-132929] c.o.s.a.d.n.NetAppOCIEDataSource (NetAppOCIEDataSource.java:217) - [CA] Cloud Agent Baseline response took 57 ms
2026-05-27 09:56:05,045 INFO  [common-pool-132929] c.o.s.a.d.n.NetAppOCIEDataSource (NetAppOCIEDataSource.java:248) - Cloud Agent Processiong directoryName=/var/log/ocie/recording/cloudagent/foundation/cluster01-mgmt-IP/2026-05-27T095600+0900
2026-05-27 09:56:05,045 DEBUG [common-pool-132929] c.o.s.a.f.d.EnhancedErrorDetail (EnhancedErrorDetail.java:483) - Enhanced Error Message using template file named: [errors/defaultMessage.html] was loaded.
2026-05-27 09:56:05,045 DEBUG [common-pool-132929] c.o.s.a.f.d.EnhancedErrorDetail (EnhancedErrorDetail.java:411) - EnhancedErrorDetailsFactory -  Token not set. File named: [defaultMessage.html] Token: [kb.link]
2026-05-27 09:56:05,045 DEBUG [common-pool-132929] c.o.s.a.f.d.EnhancedErrorDetail (EnhancedErrorDetail.java:411) - EnhancedErrorDetailsFactory -  Token not set. File named: [defaultMessage.html] Token: [err.msg]
2026-05-27 09:56:05,045 INFO  [common-pool-132929] c.o.s.a.d.n.NetAppOCIEDataSource (NetAppOCIEDataSource.java:338) - [] Total poll duration: 57 ms
2026-05-27 09:56:05,046 INFO  [common-pool-132929] c.o.s.a.d.n.NetAppOCIEDataSource (NetAppOCIEDataSource.java:346) - [] -- Finished Poll --
2026-05-27 09:56:05,046 ERROR [common-pool-132929] c.o.s.a.f.d.BaseDataSource (BaseDataSource.java:336) - [netappfoundation] cluster01-mgmt-IP - Runtime exception: null java.lang.NullPointerException....2026-05-27 09:56:05,046 DEBUG [common-pool-132929] c.o.s.a.f.d.BaseDataSource (BaseDataSource.java:670) - cluster01-mgmt-IP - Data source changed status from Performing Acquisition to Stand-by
2026-05-27 09:56:05,046 ERROR [common-pool-132929] c.o.s.a.f.d.BaseDataSource (DataSourceErrorException.java:246) - cluster01-mgmt-IP [Internal error] - Internal Runtime Error (Internal Runtime Error)
2026-05-27 09:56:05,046 DEBUG [common-pool-132929] c.n.o.p.a.i.u.AcquisitionStatusUtil (AcquisitionStatusUtil.java:36) - Invoking Status  REST url /acquisition-api/server/datasource/notifications
2026-05-27 09:56:05,046 DEBUG [common-pool-132929] c.n.o.p.a.i.u.AcquisitionStatusUtil (AcquisitionStatusUtil.java:38) - Sending payload: {"schema":"NETAPP","packagePollStatus":{"type":"PackagePollCompleteStatus","datasourceName":"cluster01-mgmt-IP","datasourceId":17,"packageName":"netappfoundation","pollStartTime":1779843364980,"sampleTime":-1,"isHistorical":false,"pollInterval":900000,"success":false,"durationTime":57,"zapiTime":-1,"reportTime":-1,"errors":[{"ClusterManagementIP":"cluster01-mgmt-IP","Zapi":null,"Type":"INTERNAL_ERROR","Message":"General Message","Port":"443"}],"warnings":[]}}

  • server_acq.log indicates failed to unpack the baseline messages:

2026-05-27 09:55:46,566 INFO  [default task-72034] c.n.o.n.e.s.i.i.NetAppEmsEventPersistenceImpl (NetAppEmsEventPersistenceImpl.java:84) - Persisted ems event in netapp_model and retrieved id is 38758
2026-05-27 09:56:04,990 INFO  [JmsSession [ID:f4de6d1c-e68d-428e-9a92-9142ed015f01:1:1] delivery dispatcher] c.n.s.m.JmsUtils (JmsUtils.java:189) - ONTAP cluster DataCollectorTrigger sent baseline.request message, JMSXDeliveryCount=1, cluster_uuid=cluster01-uuid, name=AIQ_UM_AU_TRIGGER, uuid=AIQUM-System-UUID
2026-05-27 09:56:05,042 INFO  [JmsSession [ID:46da1243-10e0-404e-a1ae-a6d96fd9569f:1:1] delivery dispatcher] c.n.s.m.JmsUtils (JmsUtils.java:189) - ONTAP cluster cluster01-mgmt-IP sent baseline message, JMSXDeliveryCount=1, cluster_uuid=cluster01-uuid, collection_mode=on_demand, name=UnifiedManager_AIQUM-System-UUID, manifest_revision=0, uuid=d76023c6-dfb9-11f0-a526-00a0b8de6581
2026-05-27 09:56:05,043 ERROR [JmsSession [ID:46da1243-10e0-404e-a1ae-a6d96fd9569f:1:1] delivery dispatcher] c.n.s.m.DataCollectorManager (DataCollectorManager.java:496) - Unpacking of baseline messages failed with error: {} : java.lang.ClassCastException
: java.lang.ClassCastException

2026-05-27 09:56:05,043 INFO  [JmsSession [ID:46da1243-10e0-404e-a1ae-a6d96fd9569f:1:1] delivery dispatcher] c.n.s.m.CollectionMessenger (CollectionMessenger.java:88) - Sent message to AU Listener for cluster: cluster01-uuid and filename: /var/log/ocie/recording/cloudagent/foundation/cluster01-mgmt-IP/2026-05-27T095600+0900

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