@oka Perhaps others in the community may hav additional suggestions here, but since the "-" is not a valid character in JMS, you would need to use a AMQP processor to support these headers. As mentioned before there is a https://issues.apache.org/jira/browse/NIFI-14670 jira for adding AMQP 1.0 support to ConsumeAMQP processor, but it is still open and unassigned. Now that jira points to using the Qpid JMS Client in ConsumeJMS and as you experienced it works but still has limitations. Those limitations impact these specific properties with the "-" in the name. I would suggest adding your experience with trying to use Qpid AMQP in the above jira and what impacts it has on the two headers you require to maybe push the Apache community to adding AMQP 1.0 support to the AMQP specific processors. Additionally, there is this jira (https://issues.apache.org/jira/browse/QPID-4992), where an individual expressed some success preserving the content type header by using ActiveMQ JMS API instead of the Qpid AMQP JMS API. So you may want to give this jira a read and maybe try this for yourself. Please help our community grow. If you found any of the suggestions/solutions provided helped you with solving your issue or answering your question, please take a moment to login and click "Accept as Solution" on one or more of them that helped. Thank you, Matt
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