Apache Unexpected subelement exception while generating a webservice client

I'm trying to generate a webservice client with wsdl2java from axis2 (version 1.6.1).

./wsdl2java.sh -uri http://www.ncbi.nlm.nih.gov/entrez/eutils/soap/v2.0/efetch_snp.wsdl
 

When I call this service, I get an Exception.

org.apache.axis2.AxisFault: org.apache.axis2.databinding.ADBException: Unexpected subelement {http://www.ncbi.nlm.nih.gov/soap/eutils/efetch_snp}Rs

    try {
         EFetchSnpServiceStub fetchService = new EFetchSnpServiceStub();
         EFetchSnpServiceStub.EFetchRequest reqIdSnp = new EFetchSnpServiceStub.EFetchRequest();
         reqIdSnp.setId("193925233");
         EFetchSnpServiceStub.EFetchResult resIdSnp = fetchService.run_eFetch(reqIdSnp);
     } catch (Exception e) {
         System.out.println(e.toString());
     }   
 

With soaptest however I can see the Rs Tag in the result.

<Rs rsId="193925233" snpClass="snp" snpType="notwithdrawn" molType="genomic" bitField="050000000005000000000100" taxId="3702">
 

How can I fix this exception? The WSDL is not under my control.

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