Not able to hit the webservice when deployed in tomcat.

Hi,
we were previously using the webservice AXIS-1.
And it was deployed in tomcat server at location (http://ServerURL/webapps/BPQB-SOPostService-MYApp/services/SOPostWebService).

Now I am tryin to upgrade it to AXIS-2.

I have written the WSDL , Generated the skeleton, Stubs. Added business logic in the skeleton.
I created the aar file put it in the AXIS2_Home/services/repository... and it works fine.
I tested the above scenario on my local machine and with AXIS-2 server.

Now the same I am trying to do on the remote machine.
I have changed the stub files to point it to http://ServerURL/webapps/BPQB-SOPostService-MYApp/services/SOPostWebService.In the constructor of the stub.

After uploading the webservice to the tomcat if i hit the http://ServerURL/webapps/BPQB-SOPostService-MYApp/services/SOPostWebService I see the page which tells

SOPostWebService
Hi there, this is an AXIS service!
Perhaps there will be a form for invoking the service here...

Now i trying to invoke the webservice from my code using stub but it fails on the _operationClient.execute(true); call in the stub.

Stack trace is here :

Skeleton Code :

public com.url.pkg.ShowInputResponse showInput( 
        com.url.pkg.ShowInput showInput) { 
    // TODO : fill this with the necessary business logic 
    String inputString = showInput.getInputString(); 
    System.out.println("INput String is :\n" + inputString); 
    XStream xStream = new XStream(); 
    System.out.println("After XStream Declaration..."); 
    SOVO vo = null; 
    try { 
        vo = (SOVO) xStream.fromXML(inputString); 
    } catch (Throwable e) { 
        System.out.println(e); 
        e.printStackTrace(); 
    } 
    System.out.println("After SOVO casting from XML"); 
    System.out.println(vo.getName()); 
    System.out.println(vo.getParams()); 
    // TODO: business logic 
    ShowInputResponse response = new ShowInputResponse(); 
    response.set_return(inputString); 
    return response; 
}

public class SOVO {

private String name; 
    private Map params;

public String getName() { 
        return name; 
    }

public void setName(String name) { 
        this.name = name; 
    }

public Map getParams() { 
        return params; 
    }

public void setParams(Map params) { 
        this.params = params; 
    }

}

WSDL file code:

<?xml version="1.0" encoding="UTF-8"?> 
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:ns1="http://org.apache.axis2/xsd" xmlns:ns="http://pkg.url.com" xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" targetNamespace="http://pkg.url.com"> 
    <wsdl:types> 
        <xs:schema attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="http://pkg.url.com"> 
            <xs:element name="showInput"> 
                <xs:complexType> 
                    <xs:sequence> 
                        <xs:element minOccurs="0" name="inputString" nillable="true" type="xs:string"/> 
                    </xs:sequence> 
                </xs:complexType> 
            </xs:element> 
            <xs:element name="showInputResponse"> 
                <xs:complexType> 
                    <xs:sequence> 
                        <xs:element minOccurs="0" name="return" nillable="true" type="xs:string"/> 
                    </xs:sequence> 
                </xs:complexType> 
            </xs:element> 
        </xs:schema> 
    </wsdl:types> 
    <wsdl:message name="showInputRequest"> 
        <wsdl:part name="parameters" element="ns:showInput"/> 
    </wsdl:message> 
    <wsdl:message name="showInputResponse"> 
        <wsdl:part name="parameters" element="ns:showInputResponse"/> 
    </wsdl:message> 
    <wsdl:portType name="BasicServicePortType"> 
        <wsdl:operation name="showInput"> 
            <wsdl:input message="ns:showInputRequest" wsaw:Action="urn:showInput"/> 
            <wsdl:output message="ns:showInputResponse" wsaw:Action="urn:showInputResponse"/> 
        </wsdl:operation> 
    </wsdl:portType> 
    <wsdl:binding name="BasicServiceSoap11Binding" type="ns:BasicServicePortType"> 
        <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/> 
        <wsdl:operation name="showInput"> 
            <soap:operation soapAction="urn:showInput" style="document"/> 
            <wsdl:input> 
                <soap:body use="literal"/> 
            </wsdl:input> 
            <wsdl:output> 
                <soap:body use="literal"/> 
            </wsdl:output> 
        </wsdl:operation> 
    </wsdl:binding> 
    <wsdl:binding name="BasicServiceSoap12Binding" type="ns:BasicServicePortType"> 
        <soap12:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/> 
        <wsdl:operation name="showInput"> 
            <soap12:operation soapAction="urn:showInput" style="document"/> 
            <wsdl:input> 
                <soap12:body use="literal"/> 
            </wsdl:input> 
            <wsdl:output> 
                <soap12:body use="literal"/> 
            </wsdl:output> 
        </wsdl:operation> 
    </wsdl:binding> 
    <wsdl:binding name="BasicServiceHttpBinding" type="ns:BasicServicePortType"> 
        <http:binding verb="POST"/> 
        <wsdl:operation name="showInput"> 
            <http:operation location="BasicService/showInput"/> 
            <wsdl:input> 
                <mime:content type="text/xml" part="showInput"/> 
            </wsdl:input> 
            <wsdl:output> 
                <mime:content type="text/xml" part="showInput"/> 
            </wsdl:output> 
        </wsdl:operation> 
    </wsdl:binding> 
    <wsdl:service name="BasicService"> 
        <wsdl:port name="BasicServiceHttpSoap11Endpoint" binding="ns:BasicServiceSoap11Binding"> 
            <soap:address location="http://localhost:8080/axis2/services/BasicService"/> 
        </wsdl:port> 
        <wsdl:port name="BasicServiceHttpSoap12Endpoint" binding="ns:BasicServiceSoap12Binding"> 
            <soap12:address location="http://localhost:8080/axis2/services/BasicService"/> 
        </wsdl:port> 
        <wsdl:port name="BasicServiceHttpEndpoint" binding="ns:BasicServiceHttpBinding"> 
            <http:address location="http://localhost:8080/axis2/services/BasicService"/> 
        </wsdl:port> 
    </wsdl:service> 
</wsdl:definitions>

Client Code:

Can any one suggest what might be the issue?