I want to use Jersey for implemnting some Java REST services. The default POJO converter JAXB handles JSON objects a bit strange, so I want to use Jackson for converting POJOs with little or less overhead. How would do I tell the J2ME framework to use another converter?

My web.xml looks like this:

```
<!-- Jersey JAVA REST implementation -->
<servlet>
<servlet-name>Jersey</servlet-name>
    <servlet-class>
        com.sun.jersey.spi.container.servlet.ServletContainer
    </servlet-class>
    <init-param>
        <param-name>com.sun.jersey.config.property.packages</param-name>
        <param-value>org.foobar.rest.services</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Jersey</servlet-name>
    <url-pattern>/rest/*</url-pattern>
</servlet-mapping>

```