problem when invoking an operation using axis 1.4

[Rafa Barcel� Bauz�]

Hello folks:
Can someone help me.
I have this Exception when executing this piece of code:

***org.xml.sax.SAXException: No deserializer for {http://schemas.xmlsoap.org/soap/encoding/}string***

It's possible the problem is the java.util.Map (params) that is passed in the invoke method???

private void executeCalculoTasa(int codigoTramite) throws Exception {
Map params = new HashMap();
params.put("DATAINICI", "2007-01-03");
params.put("DATAFINAL", "2007-12-31");
params.put("SUPERFICIE", "89");

Call call = (Call) new Service().createCall();
call.setTargetEndpointAddress(new URL("http://194.106.16.44:9090/calvixis/services"));
call.setOperationName(new QName("DadesTramit", "calcTaxa"));

BigDecimal response = (BigDecimal) call.invoke(new Object[]{new Integer(codigoTramite),params});

System.out.println("response=" + response);
}

______________________________________________
This is the wsdl user for:

<?xml version="1.0" encoding="UTF-8"?>
<wsdl efinitions targetNamespace="http://tramit.admonline.model" xmlns:apachesoap="http://xml.apache.org/xml-soap" xmlns:impl="http://tramit.admonline.model" xmlns:intf="http://tramit.admonline.model" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<!--WSDL created by Apache Axis version: 1.2.1
Built on Jun 14, 2005 (09:15:57 EDT)-->
<wsdl:types>
<schema elementFormDefault="qualified" targetNamespace="http://tramit.admonline.model" xmlns="http://www.w3.org/2001/XMLSchema">
<import namespace="http://xml.apache.org/xml-soap"/>
<element name="calcTaxa">
<complexType>
<sequence>
<element name="kTramit" type="xsd:int"/>

<element name="param" type="apachesoap:Map"/>
</sequence>
</complexType>
</element>
<element name="calcTaxaResponse">
<complexType>
<sequence>
<element name="calcTaxaReturn" type="xsd ecimal"/>
</sequence>

</complexType>
</element>
</schema>
<schema elementFormDefault="qualified" targetNamespace="http://xml.apache.org/xml-soap" xmlns="http://www.w3.org/2001/XMLSchema">
<complexType name="mapItem">
<sequence>
<element name="key" nillable="true" type="xsd:anyType"/>
<element name="value" nillable="true" type="xsd:anyType"/>
</sequence>

</complexType>
<complexType name="Map">
<sequence>
<element maxOccurs="unbounded" minOccurs="0" name="item" type="apachesoap:mapItem"/>
</sequence>
</complexType>
</schema>
</wsdl:types>

<wsdl:message name="calcTaxaResponse">

<wsdl art element="impl:calcTaxaResponse" name="parameters"/>

</wsdl:message>

<wsdl:message name="calcTaxaRequest">

<wsdl art element="impl:calcTaxa" name="parameters"/>

</wsdl:message>

<wsdl ortType name="DadesTramit">

<wsdl peration name="calcTaxa">

<wsdl:input message="impl:calcTaxaRequest" name="calcTaxaRequest"/>

<wsdl utput message="impl:calcTaxaResponse" name="calcTaxaResponse"/>

</wsdl peration>

</wsdl ortType>

<wsdl:binding name="DadesTramitSoapBinding" type="impl adesTramit">

<wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>

<wsdl peration name="calcTaxa">

<wsdlsoap peration soapAction=""/>

<wsdl:input name="calcTaxaRequest">

<wsdlsoap:body use="literal"/>

</wsdl:input>

<wsdl utput name="calcTaxaResponse">

<wsdlsoap:body use="literal"/>

</wsdl utput>

</wsdl peration>

</wsdl:binding>

<wsdl:service name="DadesTramitService">

<wsdl ort binding="impl adesTramitSoapBinding" name="DadesTramit">

<wsdlsoap:address location="http://194.106.16.44:9090/calvixis/services/DadesTramit"/>

</wsdl ort>

</wsdl:service>

</wsdl efinitions>