MessageBodyReader not found for media type=application/json

Question

I have wrote a JAX-RS server and client both use Jersey. I want to sent a collection of my entities to client and I made this steps:

1. Made entity extends Serial

Answer 1

Check if you are registering the media type for JSON support. Do you have jersey-media-moxy on your class-path? If not, add this dependency to your pom.xml, please check your jersey version, in this example I'm using Jersey 2 (2.24)

    <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-moxy</artifactId>
        <version>2.24</version>
    </dependency>

Answer 2

You can use jersey json library:

<dependency>
    <groupId>org.glassfish.jersey.media</groupId>
    <artifactId>jersey-media-json-jackson</artifactId>
    <version>2.22</version>
</dependency>

Or genson:

<dependency>
    <groupId>com.owlike</groupId>
    <artifactId>genson</artifactId>
    <version>1.3</version>
</dependency>