Type inheritance does not work with JAXBRI

Type inheritance does not work with JAXBRI

Code generated using the following settings from the attached WSDL:
<databindingName>jaxbri</databindingName>
<generateServerSide>true</generateServerSide>
<generateServerSideInterface>true</generateServerSideInterface>
<generateServicesXml>true</generateServicesXml>
<syncMode>sync</syncMode>
<generateAllClasses>true</generateAllClasses>
<unpackClasses>true</unpackClasses>

The following code
Example z = new ExampleStub("http://localhost:8888/axis2/services/Example");
MetodaInput m = new MetodaInput();
m.setTest("test string");
Child ch = new Child();
ch.setI(19);
ch.setS("child");
m.setPar(ch);
z.metoda(m);

renders this incorrect SOAP (child type and "s" field are lost):
<soapenv:Body><metoda xmlns="http://example.org/"><test>test string</test><par><i>19</i></par></metoda></soapenv:Body>

while correct would be:
<soapenv:Body><metoda xmlns="http://example.org/"><test>test string</test><par xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="child"><i>19</i><s>child</s></par></metoda></soapenv:Body>

The problem could be in JAXBContext creation in Stub:
jc = javax.xml.bind.JAXBContext.newInstance(org.example.MetodaInput.class);