Making SOAP call using Perl's SOAP::Lite and a WSDL file

Question

I want to make a SOAP call to a local web service. The web service is defined via a WSDL file (see below). I want to use Perl and SOAP::Lite. I tried this:

use strict ;
use warnings ;

use SOAP::Lite ;

my $endpoint = qq{http://example.com:2222/orawsv/PS_API/ACCOUNT_WS} ;
my $tns = 'http://xmlns.oracle.com/orawsv/PS_API/ACCOUNT_WS' ;

my $method_urn = $tns ;
my $soapaction = $tns ;
my $method = 'GET_BY_ACCOUNT_NUMBER' ;

my $sObj = SOAP::Lite->new(uri => $soapaction, proxy => $endpoint) ;

my $response = $sObj->call(SOAP::Data->name($method)->attr({ 'xmlns' => $method_urn})
            => SOAP::Data->name('ACCOUNT_NUMBER-VARCHAR2-IN' => '274724')) ;

print $response->faultstring() . "\n";

However, this results in an XML parsing failed error message. What would be the correct SOAP::Lite code to make this method call?

The HTTP request generated by the above is

Accept: text/xml
Accept: multipart/*
Accept: application/soap
Content-Length: 553
Content-Type: text/xml; charset=utf-8
SOAPAction: "http://xmlns.oracle.com/orawsv/PS_API/ACCOUNT_WS#GET_BY_ACCOUNT_NUMBER"

<?xml version="1.0" encoding="UTF-8"?><soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"&gt;
  <soap:Body>
    <GET_BY_ACCOUNT_NUMBER xmlns="http://xmlns.oracle.com/orawsv/PS_API/ACCOUNT_WS"&gt;
      <ACCOUNT_NUMBER-VARCHAR2-IN xsi:type="xsd:int">274724</ACCOUNT_NUMBER-VARCHAR2-IN>
    </GET_BY_ACCOUNT_NUMBER>
  </soap:Body>
</soap:Envelope>

Here is the WSDL file defining the web service:

<definitions name="ACCOUNT_WS" 
targetNamespace="http://xmlns.oracle.com/orawsv/PS_API/ACCOUNT_WS" 
xmlns="http://schemas.xmlsoap.org/wsdl/" 
xmlns:tns="http://xmlns.oracle.com/orawsv/PS_API/ACCOUNT_WS" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"&gt;
    <types>
        <xsd:schema targetNamespace="http://xmlns.oracle.com/orawsv/PS_API/ACCOUNT_WS" elementFormDefault="qualified">     
            <xsd:element name="CACCOUNT_A-GET_BY_ACCOUNT_NUMBERInput">
                <xsd:complexType>
                    <xsd:sequence>
                        <xsd:element name="ACCOUNT_NUMBER-VARCHAR2-IN" type="xsd:string"/>
                    </xsd:sequence>
                </xsd:complexType>
            </xsd:element>
            <xsd:element name="GET_BY_ACCOUNT_NUMBEROutput">
                <xsd:complexType>
                    <xsd:sequence>
                        <xsd:element name="RETURN" type="xsd:string"/>
                    </xsd:sequence>
                </xsd:complexType>
            </xsd:element>            
        </xsd:schema>
    </types>
    <message name="GET_BY_ACCOUNT_NUMBERInputMessage">
        <part name="parameters" element="tns:CACCOUNT_A-GET_BY_ACCOUNT_NUMBERInput"/>
    </message>
    <message name="GET_BY_ACCOUNT_NUMBEROutputMessage">
        <part name="parameters" element="tns:GET_BY_ACCOUNT_NUMBEROutput"/>
    </message>
    <portType name="ACCOUNT_WSPortType">
        <operation name="GET_BY_ACCOUNT_NUMBER">
            <input message="tns:GET_BY_ACCOUNT_NUMBERInputMessage"/>
            <output message="tns:GET_BY_ACCOUNT_NUMBEROutputMessage"/>
        </operation>
    </portType>
    <binding name="ACCOUNT_WSBinding" type="tns:ACCOUNT_WSPortType">
        <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/&gt;
        <operation name="GET_BY_ACCOUNT_NUMBER">
            <soap:operation soapAction="GET_BY_ACCOUNT_NUMBER"/>
            <input>
                <soap:body parts="parameters" use="literal"/>
            </input>
            <output>
                <soap:body parts="parameters" use="literal"/>
            </output>
        </operation>
    </binding>
    <service name="ACCOUNT_WSService">
        <documentation>Oracle Web Service</documentation>
        <port name="ACCOUNT_WSPort" binding="tns:ACCOUNT_WSBinding">
            <soap:address  location="http://example.com:2222/orawsv/PS_API/ACCOUNT_WS"/&gt;
        </port>
    </service>
</definitions>