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Connecting to a webservice from a webservice

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I am new to webservices and I am trying to do the following:

Build a webservice that allows user to select a service (a function), and from that, it will connect to a third party webservice, get the results, analyze and return what is needed by that service.

so basically:
client --> interfaces with my webservice --> calls third party webservice --> comes back to my webservice and returns results to client

I've been building each part seperately. I wasn't sure on how to approach things, but I went ahead and used JAXB to bind the data for the third party webservice. They basically provided me with a wsdl and some schema's. I was able to get that working perfectly. The next thing I did was I got Axis2 (axis2.1.4.1) installed on jboss5.0.0, and I was able to get my webservice up and running (built java classes and then built the services.xml, etc..).

Now I'm trying to access one of my functions which then calls the third party webservice. When I do that, I get the following:

Unable to find required classes (javax.activation.DataHandler and javax.mail.internet.MimeMultipart). Attachment support is disabled.
Exception in thread "main" AxisFault
faultCode: {http://www.w3.org/2003/05/soap-envelope}Receiver
faultString: org/apache/axis/client/Service
at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:633)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanEndElement(XMLNSDocumentScannerImpl.java:719)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1685)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)

For some reason it doesn't like that I am importing org.apache.axis.client.Service, and I'm not sure what to do. I'm not even sure if what i'm doing is the right approach. Any help would be appreciated.

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