error using camel jaxb with java route

Question

According to Camel documentation, I create JaxbDataFormat (example code in documentation uses non-existing constructor, though?)

@Override
public void configure() throws Exception {

    JaxbDataFormat jaxbDataFormat = new JaxbDataFormat();
    jaxbDataFormat.setContextPath("somepackage");

I have pom-dependency

    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-jaxb</artifactId>
        <version>2.18.3</version>
    </dependency>

Doesn't work : "ConvertBody... because of Data format 'jaxb' could not be created."

Could somebody please give an example code how jaxb conversions are supposed to work with Camel. I have Camel in Action 2ed, but the example there uses XML-definde route. Procedure seems simple enough with XML - but I'm not very enthusiastic about using xml as programming language ;)

Using java 8.

............

Exception in thread "CamelMainRunController" java.lang.RuntimeException: org.apache.camel.FailedToCreateRouteException: Failed to create route route2 at: >>> Marshal[org.apache.camel.model.dataformat.JaxbDataFormat@57d7f108] <<< in route: Route(route2)[[From[activemq:gateway.queue]] -> [OnException... because of Data format 'jaxb' could not be created. Ensure that the data format is valid and the associated Camel component is present on the classpath at org.apache.camel.spring.boot.CamelSpringBootApplicationController.run(CamelSpringBootApplicationController.java:74) at org.apache.camel.spring.boot.CamelMainRunController$DaemonTask.run(CamelMainRunController.java:42) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.camel.FailedToCreateRouteException: Failed to create route route2 at: >>> Marshal[org.apache.camel.model.dataformat.JaxbDataFormat@57d7f108] <<< in route: Route(route2)[[From[activemq:gateway.queue]] -> [OnException... because of Data format 'jaxb' could not be created. Ensure that the data format is valid and the associated Camel component is present on the classpath at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1071) at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:196) at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:984) at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:3401) at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3132) at org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:183) at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:2961) at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:2957) at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:2980) at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:2957) at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:2924) at org.apache.camel.main.Main.doStart(Main.java:129) at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) at org.apache.camel.main.MainSupport.run(MainSupport.java:138) at org.apache.camel.spring.boot.CamelSpringBootApplicationController.run(CamelSpringBootApplicationController.java:69) ... 2 more Caused by: java.lang.IllegalArgumentException: Data format 'jaxb' could not be created. Ensure that the data format is valid and the associated Camel component is present on the classpath at org.apache.camel.model.DataFormatDefinition.getDataFormat(DataFormatDefinition.java:107) at org.apache.camel.model.DataFormatDefinition.getDataFormat(DataFormatDefinition.java:88) at org.apache.camel.model.MarshalDefinition.createProcessor(MarshalDefinition.java:177) at org.apache.camel.model.ProcessorDefinition.makeProcessorImpl(ProcessorDefinition.java:545) at org.apache.camel.model.ProcessorDefinition.makeProcessor(ProcessorDefinition.java:506) at org.apache.camel.model.ProcessorDefinition.addRoutes(ProcessorDefinition.java:222) at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1068) ... 17 more

Is camel-jaxb available on your classpath at runtime? How do you run Camel? Standalone? Spring? Blueprint/OSGi? — Alessandro Da Rugna
If you use spring-boot then use camel-jaxb-starter as maven dependency. — Claus Ibsen
I'm using spring-boot, added camel-jaxb-starter (and restarted IDEA). Now jaxb-conversions work fine. Thanks for help ! (wonder how am I supposed to close this case ?) — catch22
@AlessandroDaRugna I have same problem. I am using Blueprint/OSGI way. In my case, if I run my bundle on fuse server then unmarshalling works well however if I test my route using Junit then I am getting error. Not sure why is camel-jaxb not available while testing my routes. Any suggestions/idea to fix this? Thanks in advance. — suvojit
@user3359005 Maybe you want to open a new question for your case. Do you use this: camel.apache.org/blueprint-testing.html ? — Alessandro Da Rugna

sjavaoradev sjavaoradev · Accepted Answer · 2019-04-12T08:10:48

add to pom

    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-jaxb-starter</artifactId>
        <version>2.23.1</version>
    </dependency>

and update project

error using camel jaxb with java route

1 Answers