Jersey + Json media type application/json was not found

Add the following dependency to solve the problem

"javax.ws.rs.WebApplicationException: com.sun.jersey.api.MessageException: A message body writer for Java class com.test.Jsonexample, and Java type class com.test.Jsonexample, and MIME media type application/json was not found
    at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:285)"

Solution :

<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-bundle</artifactId>
    <version>1.18</version>
</dependency>

Fixed issue by adding the following to my pom.xml:

    <dependency>
        <groupId>com.owlike</groupId>
        <artifactId>genson</artifactId>
        <version>0.99</version>
    </dependency>

Documentation can be found at: https://code.google.com/p/genson/

This problem is fixed with jersey-bundle-1.8.jar

First of all if your @POST web-service returns a response you must add @Produces annotation.

Ensure that jersey-json lib is in your classpath. Try removing the toString() method because it may broke the beans structure format.