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Editorial Team
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Asked: 2026-06-06T00:39:31+00:00

I am using Jersey (with Jetty) and Maven to implement a RESTful service. I

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I am using Jersey (with Jetty) and Maven to implement a RESTful service. I am trying to send a JSONObject using JAXB, I have followed some tutorials such as: http://jersey.java.net/nonav/documentation/1.7/user-guide.html#d4e919 and http://www.vogella.com/articles/REST/article.html

So I just have a simple bean that I want to send as a JSON Object. I have followed all the steps, but I am not able to send the JSON Object (although I do recieve the XML format correctly). I obtain the following exception: com.sun.jersey.api.MessageException: A message body writer for Java class de.vogella.jersey.jaxb.model.Todo, and Java type class de.vogella.jersey.jaxb.model.Todo, and MIME media type application/json was not found

I have tried different solutions that I found around, but nothing seems to work.
I am wondering if I must have any dependencies missing or I have to implement a ContextResolver (although any tutorials use them for easy objects like these ones).

These are the dependencies that I have:

    <dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
    </dependency>

    <!-- Jersey -->
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-server</artifactId>
        <version>1.11</version>
    </dependency>
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-servlet</artifactId>
        <version>1.11</version>
    </dependency>

    <!-- Json -->
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-json</artifactId>
        <version>1.11</version>
    </dependency>

    <!-- Jetty -->
    <dependency>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>jetty</artifactId>
        <version>6.1.26</version>
    </dependency>

</dependencies>

Thank you very much

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1 Answer

  1. Editorial Team

    I have found the missing dependency:

        <dependency>
        <groupId>org.eclipse.persistence</groupId>
        <artifactId>eclipselink</artifactId>
        <version>2.0.0</version>
        <scope>compile</scope>
    </dependency>

    And I had to add a repository as well to avoid missing archetypes errors:

    <repositories>
    <repository>
        <id>EclipseLink Repo</id>
        <url>http://www.eclipse.org/downloads/download.php?r=1&amp;nf=1&amp;file=/rt/eclipselink/maven.repo</url>
    </repository>
</repositories>
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