Problem

Developing RESTEasy + JAXB provider to support XML, when return it back to client, it prompts following error message :

org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure: 
	Could not find MessageBodyWriter for response object of type: 
                com.mkyong.rest.User of media type: application/xml
 
    at org.jboss.resteasy.core.ServerResponse.writeTo(ServerResponse.java:216)
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:500)
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119)
    //...

Solution

To use JAXB in RESTEasy, you need to include “resteasy-jaxb-provider.jar“.

  <repositories>
	<repository>
		<id>JBoss repository</id>
		<url>https://repository.jboss.org/nexus/content/groups/public-jboss/</url>
	</repository>
  </repositories>
 
  <dependencies>
 
	<dependency>
		<groupId>org.jboss.resteasy</groupId>
		<artifactId>resteasy-jaxrs</artifactId>
		<version>2.2.1.GA</version>
	</dependency>
 
	<dependency>
		<groupId>org.jboss.resteasy</groupId>
		<artifactId>resteasy-jaxb-provider</artifactId>
		<version>2.2.0.GA</version>
	</dependency>
 
  </dependencies>
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