Apache TomEE Jettison configuration

openejb-jar.xml

<openejb-jar xmlns="http://www.openejb.org/openejb-jar/1.1"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://www.openejb.org/openejb-jar/1.1">
    <pojo-deployment  class-name="jaxrs-application">
        <properties>
            cxf.jaxrs.providers = jsonProvider
        </properties>
    </pojo-deployment>
</openejb-jar>

resources.xml

<?xml version="1.0"?>
<resources>
    <Service id="jsonProvider" class-name="org.apache.cxf.jaxrs.provider.json.JSONProvider">
        dropRootElement=true
        supportUnwrapped = true
        dropCollectionWrapperElement=true
    </Service>
</resources>