xml avec java

Bonjour
j'ai un fichier xml qui est le suivant

Code:

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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
	<metadonnees>
		<usine type="usine-matiere">
			<icones>
				<icone type="vide" path="src/ressources/UMP0%.png"/>
				<icone type="un-tiers" path="src/ressources/UMP33%.png"/>
				<icone type="deux-tiers" path="src/ressources/UMP66%.png"/>
				<icone type="plein" path="src/ressources/UMP100%.png"/>
			</icones>
			<sortie type = "metal"/>
			<interval-production>100</interval-production>
		</usine>
		<usine type="usine-aile">
			<icones>
				<icone type="vide" path="src/ressources/UT0%.png"/>
				<icone type="un-tiers" path="src/ressources/UT33%.png"/>
				<icone type="deux-tiers" path="src/ressources/UT66%.png"/>
				<icone type="plein" path="src/ressources/UT100%.png"/>
			</icones>
			<entree type="metal" quantite="2"/>
			<sortie type="aile"/>
			<interval-production>50</interval-production>
		</usine>
		<usine type="usine-moteur">
			<icones>			
				<icone type="vide" path="src/ressources/UM0%.png"/>
				<icone type="un-tiers" path="src/ressources/UM33%.png"/>
				<icone type="deux-tiers" path="src/ressources/UM66%.png"/>
				<icone type="plein" path="src/ressources/UM100%.png"/>
			</icones>
			<entree type="metal" quantite="4"/>
			<sortie type="moteur"/>
			<interval-production>75</interval-production>
		</usine>
		<usine type="usine-assemblage">
			<icones>
				<icone type="vide" path="src/ressources/UA0%.png"/>
				<icone type="un-tiers" path="src/ressources/UA33%.png"/>
				<icone type="deux-tiers" path="src/ressources/UA66%.png"/>
				<icone type="plein" path="src/ressources/UA100%.png"/>
			</icones>
			<entree type="aile" quantite="2"/>
			<entree type="moteur" quantite="4"/>
			<sortie type="avion"/>
			<interval-production>110</interval-production>
		</usine>
		<usine type="entrepot">
			<icones>
				<icone type="vide" path="src/ressources/E0%.png"/>
				<icone type="un-tiers" path="src/ressources/E33%.png"/>
				<icone type="deux-tiers" path="src/ressources/E66%.png"/>
				<icone type="plein" path="src/ressources/E100%.png"/>
			</icones>
			<entree type="avion" capacite="5"/>
		</usine>
	</metadonnees>
 
	<simulation>
		<usine type="usine-matiere" id="11" x="32" y="32"/>
		<usine type="usine-aile" id="21" x="320" y="32"/>
		<usine type="usine-assemblage" id="41" x="160" y="192"/> 
		<usine type="entrepot" id="51" x="640" y="192"/>
		<usine type="usine-matiere" id="13" x="544" y="576"/>
		<usine type="usine-matiere" id="12" x="96" y="352"/>
		<usine type="usine-moteur" id="31" x="320" y="352"/>
		<chemins>
			<chemin de="11" vers="21" />
			<chemin de="21" vers="41" />
			<chemin de="41" vers="51" />
			<chemin de="12" vers="31" />
			<chemin de="13" vers="31" />
			<chemin de="31" vers="41" />
		</chemins>
	</simulation>
 
</configuration>

je veux le lire je cree une classe usineXml qui represente un objet usine

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public class UsineXml {
 
 
	private String type;
	private String typeIcone;
	private String pathIcone;
	private String typeEntree;
	private String typeSortie;
	private int intervalProuction;
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
	public String getTypeIcone() {
		return typeIcone;
	}
	public void setTypeIcone(String typeIcone) {
		this.typeIcone = typeIcone;
	}
	public String getPathIcone() {
		return pathIcone;
	}
	public void setPathIcone(String pathIcone) {
		this.pathIcone = pathIcone;
	}
	public String getTypeEntree() {
		return typeEntree;
	}
	public void setTypeEntree(String typeEntree) {
		this.typeEntree = typeEntree;
	}
	public String getTypeSortie() {
		return typeSortie;
	}
	public void setTypeSortie(String typeSortie) {
		this.typeSortie = typeSortie;
	}
	public int getIntervalProuction() {
		return intervalProuction;
	}
	public void setIntervalProuction(int intervalProuction) {
		this.intervalProuction = intervalProuction;
	}
 
	 @Override
	    public String toString() {
	        return "usine:: Name=" + this.type ;
	    }
 
}

ensuite j'attaque la lecture

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import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
 
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
 
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
 
 
public class XmlReaderDom {
 
    public static void main(String[] args) {
        String filePath = "configuration.xml";
        File xmlFile = new File(filePath);
        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder dBuilder;
        try {
            dBuilder = dbFactory.newDocumentBuilder();
            Document doc = dBuilder.parse(xmlFile);
            doc.getDocumentElement().normalize();
            System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
            NodeList nodeList = doc.getElementsByTagName("metadonnees");
            //now XML is loaded as Document in memory, lets convert it to Object List
            List<UsineXml> empList = new ArrayList<UsineXml>();
            for (int i = 0; i < nodeList.getLength(); i++) {
                empList.add(getUsine(nodeList.item(i)));
            }
            //lets print Employee list information
            for (UsineXml emp : empList) {
                System.out.println(emp.toString());
            }
        } catch (SAXException | ParserConfigurationException | IOException e1) {
            e1.printStackTrace();
        }
 
    }
 
 
    private static UsineXml getUsine(Node node) {
        //XMLReaderDOM domReader = new XMLReaderDOM();
        UsineXml uneUsine = new UsineXml();
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            Element element = (Element) node;
            uneUsine.setType(getTagValue("type", element));
 
        }
 
        return uneUsine;
    }
 
 
    private static String getTagValue(String tag, Element element) {
        NodeList nodeList = element.getElementsByTagName(tag).item(0).getChildNodes();
        Node node = (Node) nodeList.item(0);
        return node.getNodeValue();
    }
 
}

mais des erreurs apparaissent
pouvez vous m'aider pour corriger ce code
le projet est en piece jointe

merci