Camel route from Kafka to JMS not working (JMS->Kafka->JMS) - spring-boot

Question

In my Camel Router.java I have next routes
from("jms:topic:test.source.topic?asyncConsumer=true")
.log("Message: ${body}")
.to("kafka:testing?brokers=192.168.0.100:9092");
from("kafka:testing?brokers=192.168.0.100:9092")
.log("Message received from Kafka : ${body}")
.log(" on the topic ${headers[kafka.TOPIC]}")
.log(" on the partition ${headers[kafka.PARTITION]}")
.log(" with the offset ${headers[kafka.OFFSET]}")
.log(" with the key ${headers[kafka.KEY]}")
// manually set JMSDeliveryMode (1 - NON_PERSISTENT, 2 - PERSISTENT)
.process(new Processor() {
#Override
public void process(Exchange exchange) throws Exception {
exchange.getIn().setHeader("JMSDeliveryMode", "1");
}
})
.to("jms:topic:test.sink.topic");
Problem appears with above Camel routes. If I send some message to topic testing with Kafka producer that I run with bin/kafka-console-producer.sh --topic testing --bootstrap-server localhost:9092, routing from Kafka to JMS is working fine. So it is some problem with those linked Camel routes.
In Camel pom.xml are Spring Boot camel-kafka-starter and camel-jms-starter dependencies.
When I start Spring Boot Camel with Maven and send some message from Kafka producer to Kafka broker testing topic, I can see that message is recieved by Kafka broker and above logs are printed OK.
Error appears on line .to("jms:topic:test.sink.topic"); and I don't know what it means.
ERROR 28642 --- [aConsumer[testing]] o.a.c.p.e.DefaultErrorHandler: Failed delivery for (MessageId: ID-PCID on ExchangeId: ID-PCID). Exhausted after delivery attempt: 1 caught: org.springframework.jms.UncategorizedJmsException: Uncategorized exception occurred during JMS processing; nested exception is javax.jms.JMSException: AMQ139015: Illegal deliveryMode value: 0
org.springframework.jms.UncategorizedJmsException: Uncategorized exception occurred during JMS processing; nested exception is javax.jms.JMSException: AMQ139015: Illegal deliveryMode value: 0
at org.springframework.jms.support.JmsUtils.convertJmsAccessException(JmsUtils.java:311) ~[spring-jms-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.jms.support.JmsAccessor.convertJmsAccessException(JmsAccessor.java:185) ~[spring-jms-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.jms.core.JmsTemplate.execute(JmsTemplate.java:507) ~[spring-jms-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.send(JmsConfiguration.java:525) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsProducer.doSend(JmsProducer.java:438) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsProducer.processInOnly(JmsProducer.java:392) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:155) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:168) ~[camel-base-3.4.0.jar:3.4.0]
at org.apache.camel.processor.errorhandler.RedeliveryErrorHandler$SimpleTask.run(RedeliveryErrorHandler.java:395) ~[camel-base-3.4.0.jar:3.4.0]
at org.apache.camel.impl.engine.DefaultReactiveExecutor$Worker.schedule(DefaultReactiveExecutor.java:148) ~[camel-base-3.4.0.jar:3.4.0]
at org.apache.camel.impl.engine.DefaultReactiveExecutor.scheduleMain(DefaultReactiveExecutor.java:60) ~[camel-base-3.4.0.jar:3.4.0]
at org.apache.camel.processor.Pipeline.process(Pipeline.java:147) ~[camel-base-3.4.0.jar:3.4.0]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:286) ~[camel-base-3.4.0.jar:3.4.0]
at org.apache.camel.impl.engine.DefaultAsyncProcessorAwaitManager.process(DefaultAsyncProcessorAwaitManager.java:83) ~[camel-base-3.4.0.jar:3.4.0]
at org.apache.camel.support.AsyncProcessorSupport.process(AsyncProcessorSupport.java:40) ~[camel-support-3.4.0.jar:3.4.0]
at org.apache.camel.component.kafka.KafkaConsumer$KafkaFetchRecords.doRun(KafkaConsumer.java:346) ~[camel-kafka-3.4.0.jar:3.4.0]
at org.apache.camel.component.kafka.KafkaConsumer$KafkaFetchRecords.run(KafkaConsumer.java:222) ~[camel-kafka-3.4.0.jar:3.4.0]
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[na:na]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Caused by: javax.jms.JMSException: AMQ139015: Illegal deliveryMode value: 0
at org.apache.activemq.artemis.jms.client.ActiveMQMessage.setJMSDeliveryMode(ActiveMQMessage.java:450) ~[artemis-jms-client-2.12.0.jar:2.12.0]
at org.apache.camel.component.jms.JmsMessageHelper.setJMSDeliveryMode(JmsMessageHelper.java:435) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsBinding.appendJmsProperty(JmsBinding.java:393) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsBinding.appendJmsProperties(JmsBinding.java:371) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsBinding.makeJmsMessage(JmsBinding.java:346) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsProducer$2.createMessage(JmsProducer.java:325) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.doSendToDestination(JmsConfiguration.java:561) ~[camel-jms-3.4.0.jar:3.4.0]
at org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.lambda$send$0(JmsConfiguration.java:527) ~[camel-jms-3.4.0.jar:3.4.0]
at org.springframework.jms.core.JmsTemplate.execute(JmsTemplate.java:504) ~[spring-jms-5.2.6.RELEASE.jar:5.2.6.RELEASE]
... 19 common frames omitted
When sending some message from JMS to Kafka, routing is working fine.

Answer 1

Here's the relevant error message:
AMQ139015: Illegal deliveryMode value: 0
This error message means that something has invoked the JMS method javax.jms.Message#setJMSDeliveryMode with a value of 0. The value of 0 is not valid. Valid delivery mode values are defined by javax.jms.DeliveryMode:
1 (for non-persistent)
2 (for persistent).
The stack-trace indicates that this invalid value is being set by Camel based on the input message. See this code. In order to fix the problem you need to determine where the header JMSDeliveryMode is being set on the org.apache.camel.Message.