[Gvsig_desarrolladores] Error al ejecutar codigo de SEXTANTE

[raisel]

Hola a todos

Estoy tratando de ejecutar el siguiente codigo que utiliza a un algoritmo de
SEXTANTE:

public class ExtForesta extends Extension{
 	private static FLayer l;
    private static GTOutputFactory m_OutputFactory = new GTOutputFactory ();
	
	public void initialize() {
	}

	@SuppressWarnings({ "deprecation", "deprecation", "deprecation",
"deprecation", "deprecation", "deprecation" })
	public void execute(String actionCommand) {
		
	if (actionCommand.compareTo("Foresta") == 0)
    {
		Sextante.initialize();	
		
        try {
			

doProcessing(); //metodo declarado mas abajo


		} catch (GeoAlgorithmExecutionException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	    
    }
	
    };
	
	public boolean isEnabled() {
		return true;
	}

	public boolean isVisible() {
	 return true;
	}
	
		
private static void doProcessing() throws GeoAlgorithmExecutionException,
IOException
{
	DataStore ds = openShapefile("C:/Documents and
Settings/Raisel/Desktop/hidlineal.shp");
	GTVectorLayer layer = GTVectorLayer.createLayer(ds, ds.getTypeNames()[0]);
	LinesToEquispacedPointsAlgorithm alg = new
LinesToEquispacedPointsAlgorithm();

	ParametersSet params = alg.getParameters();

params.getParameter(LinesToEquispacedPointsAlgorithm.LINES).setParameterValue(layer);

params.getParameter(LinesToEquispacedPointsAlgorithm.DISTANCE).setParameterValue(new
Double(5000));

	OutputObjectsSet outputs = alg.getOutputObjects();
	Output out = outputs.getOutput(LinesToEquispacedPointsAlgorithm.RESULT);
	out.setOutputChannel(new FileOutputChannel("D:/points.shp"));

	alg.execute(null, m_OutputFactory);

	IVectorLayer result = (IVectorLayer) out.getOutputObject();

	System.out.println("This layer contains " +
			Integer.toString(result.getShapesCount()) + " points.");
}

	
	private static DataStore openShapefile(String sFile) throws IOException {

		File file = new File( sFile );

		Map connect = new HashMap();
		connect.put( "url", file.toURL() );

		DataStore dataStore = DataStoreFinder.getDataStore( connect );

		return dataStore;

	}

}

Y me sale el siguiente error al ejecutarlo :

java.lang.AbstractMethodError:
org.geotools.data.DefaultQuery.getFilter()Lorg/geotools/filter/Filter;
	at
org.geotools.data.AbstractFeatureSource.getCount(AbstractFeatureSource.java:217)
	at
org.geotools.data.DefaultFeatureResults.getCount(DefaultFeatureResults.java:233)
	at
org.geotools.data.store.DataFeatureCollection.size(DataFeatureCollection.java:220)
	at es.unex.sextante.geotools.GTVectorLayer.create(GTVectorLayer.java:134)
	at
es.unex.sextante.geotools.GTVectorLayer.createLayer(GTVectorLayer.java:63)
	at
es.unex.sextante.geotools.GTVectorLayer.createLayer(GTVectorLayer.java:87)
	at
es.unex.sextante.geotools.GTVectorLayer.createLayer(GTVectorLayer.java:118)
	at
org.gvsig.foresta.extensions.ExtForesta.doProcessing(ExtForesta.java:124)
	at org.gvsig.foresta.extensions.ExtForesta.execute(ExtForesta.java:48)
	at
com.iver.andami.plugins.ExtensionDecorator.execute(ExtensionDecorator.java:89)
	at com.iver.andami.ui.mdiFrame.MDIFrame.actionPerformed(MDIFrame.java:673)
	at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
	at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
	at javax.swing.AbstractButton.doClick(Unknown Source)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown
Source)
	at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
	at java.awt.Component.processMouseEvent(Unknown Source)
	at javax.swing.JComponent.processMouseEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at
com.iver.andami.ui.AndamiEventQueue.dispatchEvent(AndamiEventQueue.java:58)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)


Si alguien puede ayudarme lo agradecere

Saludos, Raisel
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