I want to create this type of xml file using jaxb in eclipse

package com.naren;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
    "action"
})
@XmlRootElement(name = "action-root")
public class ActionRoot {

    @XmlElement(required = true)
    private Action action;

    /**
     * Gets the value of the action property.
     * 
     * @return
     *     possible object is
     *     {@link ActionRoot.Action }
     *     
     */
    public Action getAction() {
        return action;
    }

    /**
     * Sets the value of the action property.
     * 
     * @param value
     *     allowed object is
     *     {@link ActionRoot.Action }
     *     
     */
    public void setAction(Action value) {
        this.action = value;
    }

}

package com.naren;

import java.util.List;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlType;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = { "reportName", "reportVersion",
        "repNoOfParam", "repParams" })
public class Action {

    @XmlElement(name = "report-name", required = true)
    private String reportName;
    @XmlElement(name = "report-version")
    private int reportVersion;
    @XmlElement(name = "rep-no-of-param")
    private int repNoOfParam;
    @XmlElement(name = "rep-params")
    private List<RepParams> repParams;
    @XmlAttribute
    private String name;

    public String getReportName() {
        return reportName;
    }

    public void setReportName(String reportName) {
        this.reportName = reportName;
    }

    public int getReportVersion() {
        return reportVersion;
    }

    public void setReportVersion(int reportVersion) {
        this.reportVersion = reportVersion;
    }

    public int getRepNoOfParam() {
        return repNoOfParam;
    }

    public void setRepNoOfParam(int repNoOfParam) {
        this.repNoOfParam = repNoOfParam;
    }

    public List<RepParams> getRepParams() {
        return repParams;
    }

    public void setRepParams(List<RepParams> repParams) {
        this.repParams = repParams;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

}

package com.naren;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlType;
import javax.xml.bind.annotation.XmlValue;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = { "value" })
public class RepParams {
    @XmlAttribute
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }

    @XmlAttribute
    private int id;
    @XmlValue
    private String value;

}

package com.naren;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;

public class TestXMLGen {

    /**
     * @param args
     */
    public static void main(String[] args) {

        ActionRoot actionRoot = new ActionRoot();
        Action action = new Action();
        action.setName("EMPLOYERS");
        action.setRepNoOfParam((byte) 5);
        action.setReportVersion((byte) 12);
        action.setReportName("EMPLOYERS");
        List<RepParams> list = new ArrayList<RepParams>();

        RepParams repParams = new RepParams();
        repParams.setId((byte) 0);
        repParams.setName("P_LOCATION_ID");
        repParams.setValue("oadd_location_id");

        RepParams repParams2 = new RepParams();
        repParams2.setId((byte) 1);
        repParams2.setName("P_FINYEAR_ID");
        repParams2.setValue("oadd_fin_year_id");
        list.add(repParams);
        list.add(repParams2);
        action.setRepParams(list);
        actionRoot.setAction(action);
        try {

            File file = new File("file.xml");

            JAXBContext jaxbContext1 = JAXBContext
                    .newInstance(ActionRoot.class);
            Marshaller jaxbMarshaller = jaxbContext1.createMarshaller();

            // output pretty printed
            jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

            jaxbMarshaller.marshal(actionRoot, file);
            jaxbMarshaller.marshal(actionRoot, System.out);
        } catch (JAXBException e) {
            e.printStackTrace();
        }

    }

}

 package com.naren;

import java.io.File;
import java.util.List;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;

public class TestUnMarshalXML {
    public static void main(String[] args) {

         try {

            File file = new File("file.xml");
            JAXBContext jaxbContext = JAXBContext.newInstance(ActionRoot.class);

            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
            ActionRoot aroot = (ActionRoot) jaxbUnmarshaller.unmarshal(file);

            Action action = aroot.getAction();
            List<RepParams> repParams=action.getRepParams();
            System.out.println(action.getName()+"\t"+action.getReportName()+"\t"+action.getReportVersion());
            for(RepParams rp:repParams)
                System.out.println(rp.getId()+"\t"+rp.getName()+"\t"+rp.getValue());

          } catch (JAXBException e) {
            e.printStackTrace();
          }

        }
}