Java 11: Difficulty integrating Apache Camel with ActiveMQ for message routing and scenarios handling
Can someone help me understand I'm a bit lost with Hey everyone, I'm running into an issue that's driving me crazy. I'm currently working with an scenario while trying to integrate Apache Camel with ActiveMQ for message routing in my Java 11 application. I have set up a simple route that listens for messages on a JMS queue and processes them, but I'm experiencing unexpected behavior when a message fails to process. Here's the basic configuration I'm using: ```java import org.apache.camel.CamelContext; import org.apache.camel.builder.RouteBuilder; import org.apache.camel.impl.DefaultCamelContext; import org.apache.camel.component.jms.JmsComponent; import javax.jms.ConnectionFactory; import org.apache.activemq.ActiveMQConnectionFactory; public class MyCamelRoute { public static void main(String[] args) throws Exception { ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616"); CamelContext context = new DefaultCamelContext(); context.addComponent("jms", JmsComponent.jmsComponentAutoAcknowledge(connectionFactory)); context.addRoutes(new RouteBuilder() { @Override public void configure() { from("jms:queue:myQueue") .process(exchange -> { String body = exchange.getIn().getBody(String.class); if (body.contains("behavior")) { throw new RuntimeException("Processing behavior"); } }) .to("log:processed"); } }); context.start(); Thread.sleep(10000); context.stop(); } } ``` When a message that contains the word "behavior" is processed, I see the following exception in the logs: ``` Exception in thread "Camel (camel-1) thread - myQueue" org.apache.camel.CamelExecutionException: Failed to process exchange. ``` However, the message remains in the queue instead of being routed to an behavior handling endpoint. I've attempted to add an behavior handler using `onException`, like so: ```java .onException(RuntimeException.class) .to("jms:queue:errorQueue") .handled(true); ``` But this doesn't seem to help either, as the message still doesn't move to the behavior queue. It feels like the behavior handling is not being triggered at all. I have also verified that the behavior queue exists in ActiveMQ. Can someone point me in the right direction? What am I missing in my configuration to ensure proper behavior handling and message routing? I'd really appreciate any guidance on this. I'm coming from a different tech stack and learning Java. Any ideas how to fix this? The project is a web app built with Java. Thanks for any help you can provide!