A message body writer for Java class … and MIME media type text/html was not found [duplicate]

Answer 1

It seems that you need to implement the required MessageBodyWriter for the classes which your transport through Jersey.

You can attach @Provider to class A, and make it implements MessageBodyWriter such as:

@Provider public class A implements MessageBodyWriter

This will force you to override the required methods(writeTo, getSize, isWriteable) while jersey is tranporting the objects in your methods.

Answer 2

I had the same issue and it was down to not having Jersey's json module included on my classpath. You can simply fix it by adding the following dependency on maven

<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-json</artifactId>
    <version>1.14</version>
</dependency>