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HiveMQ extensions with a dependency on JAXB. Extensions will fail to load .
Affected extensions are (but may not be limited to):
HiveMQ Enterprise Extension for Kafka
HiveMQ Enterprise Security Extension
HiveMQ File RBAC Extension
Solution
Currently we advise remaining with a HiveMQ version prior to 4.3.3
A fix Affected extensions will be included in HiveMQ 4.3.4 which will be released updated shortly.