WSDL2JAVA Error

["Bathula, Vijay" <VB...@goSPS.com>]

I am getting the following error while converting WSDL to JAVA code for the
AXIS attachments sample examples. Please help.


java.io.IOException: Type {http://xml.apache.org/xml-soap}DataHandler is
referenced but not defined.
        at
org.apache.axis.wsdl.symbolTable.SymbolTable.checkForUndefined(Symbol
Table.java:496)
        at
org.apache.axis.wsdl.symbolTable.SymbolTable.add(SymbolTable.java:396
)
        at
org.apache.axis.wsdl.symbolTable.SymbolTable.populate(SymbolTable.jav
a:382)
        at
org.apache.axis.wsdl.symbolTable.SymbolTable.populate(SymbolTable.jav
a:367)
        at org.apache.axis.wsdl.gen.Parser$WSDLRunnable.run(Parser.java:246)
        at java.lang.Thread.run(Thread.java:536)


WSDD 
-----
<!-- This file can be used to deploy the echoAttachments sample -->
<!-- using this command: java org.apache.axis.client.AdminClient
attachdeploy.wsdd -->

<!-- This deploys the echo attachment service.  -->
<deployment xmlns="http://xml.apache.org/axis/wsdd/"
xmlns:java="http://xml.apache.org/axis/wsdd/providers/java"  >
  <service name="EchoAttachmentsService" provider="java:RPC" >
    <parameter name="className"
value="samples.attachments.EchoAttachmentsService"/>
    <parameter name="allowedMethods" value="echo echoDir"/>
    <operation name="echo" returnQName="returnqname"
returnType="ns1:DataHandler" >
        <parameter name="dh" type="ns1:DataHandler"/>
      </operation>

 <typeMapping
deserializer="org.apache.axis.encoding.ser.JAFDataHandlerDeserializerFactory
"
   languageSpecificType="java:javax.activation.DataHandler" 
 
serializer="org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory" 
    encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
     />
  </service>

</deployment>