Java Programming

Hello,
I need to send a SOAP message and receive data back from remote server. I have added some libraries from axis2 (v. 1.2) project. When I try to send a message, program throws:
Exception in thread "AWT-EventQueue-0" java.lang.NoSuchMethodError: org.apache.commons.httpclient.HttpConnectionManager.getParams()Lorg/apache/commons/httpclient/params/HttpConnectionManagerParams;

I read that there can be a problem in old commons-httpclient library, but I'm using commons-httpclient-3.0.1.jar, even tried commons-httpclient-3.1-rc1.jar, but had the same problem.
Can you please help me. I can't solve the problem with sending a soap message already for 4 days :(

Here's complete source of my class:

import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMNamespace;
import org.apache.axis2.Constants;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;


public class SoapData{
	private static final org.apache.log4j.Logger logger = org.apache.log4j.Logger.getLogger(SoapData.class);
	private static EndpointReference targetEPR = new EndpointReference("http://remote.server:8080/axis2/services/Service");
	
	  public void GetRemoteData(String id, String year) {
	        try {
	            OMElement soapMessage = generateSOAP(id, year);
	            Options options = new Options();
	            options.setTo(targetEPR);
	            options.setTransportInProtocol(Constants.TRANSPORT_HTTP);
	            ServiceClient sender = new ServiceClient();
	            sender.setOptions(options);

	            logger.debug("done");
	            OMElement result = sender.sendReceive(soapMessage);
	            logger.debug("done2");
	            String response = result.getFirstElement().getText();
	            logger.debug("done3");
	            logger.debug("FIRST ELEMENT: " + response);

	        } catch (Exception e) {
	            logger.debug(e);
	        }
	  }
	  
	  private OMElement generateSOAP(String fID, String fYear) {
  
		  	OMFactory omFactory = OMAbstractFactory.getSOAP11Factory();
		  	OMElement envelope = omFactory.createOMElement("soapenv:Envelope", null);
		  	OMNamespace ns = envelope.declareNamespace("http://schemas.xmlsoap.org/soap/envelope/", "soapenv");
		  	
		  	OMElement body = omFactory.createOMElement("Body", ns, envelope);

	        OMElement method = omFactory.createOMElement("getData", null, body);	        
	        
	        OMElement dataID = omFactory.createOMElement("farmId", null);
	        dataID.addChild(omFactory.createOMText(dataID, fID));
	        method.addChild(dataID);
	        
	        OMElement dataYear = omFactory.createOMElement("year", null);
	        dataYear.addChild(omFactory.createOMText(dataYear, fYear));
	        method.addChild(dataYear);
	        
	        return envelope;
	    }
}

It gets to line (OMElement result = sender.sendReceive(soapMessage);) where it has to communicate with remote server and throws an exception.

Here are libraries I have added to my classpath from axis2: (Maybe I'm missing something?)
activation-1.1.jar
axiom-api-1.2.4.jar
axiom-dom-1.2.4.jar
axiom-impl-1.2.4.jar
axis2-jaxws-1.2.jar
axis2-jaxws-api-1.2.jar
axis2-kernel-1.2.jar
axis2-saaj-1.2.jar
axis2-saaj-api-1.2.jar
backport-util-concurrent-2.2.jar
commons-httpclient-3.0.1.jar
stax-api-1.0.1.jar
wstx-asl-3.2.1.jar
xbean-2.2.0.jar
XmlSchema-1.3.1.jar