415 unsupported media type in java jersey

Question

I am having problem with below code saying 415 unsupported MEDIA type and The server refused this request because the request entity is in a format not supported

Answer 1

The problem is your method parameter type MultivaluedHashMap

public Activity createActivityParams(MultivaluedHashMap<String, String> formse){

The provider that handle application/x-www-form-urlencoded and MultivaluedMap, only supports MultivaluedMap or MultivaluedMap<String, String> injections. You can see in the source code

@Override
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
    // Only allow types MultivaluedMap<String, String> and MultivaluedMap.
    return type == MultivaluedMap.class
            && (type == genericType || mapType.equals(genericType));
}

So just change the method parameter to MultivaluedMap<String, String>