[Gvsig_english] error with WFS on Geoserver

[G. Allegri]

Hello list,
I was trying to verify the use of Gvsig for WFS-T editing on
Geoserver, but I faced an error since the beginning.
I can view the list of available WFS layers, but when I try to load
anyone of them I get:

Errore non catturato per l'usario
java.lang.StringIndexOutOfBoundsException: String index out of range:
-1     java.lang.String.substring(Unknown Source)
org.gvsig.crs.CrsFactory.getCRS(Unknown Source)
org.gvsig.crs.CrsFactory.get(Unknown Source)
com.iver.cit.gvsig.fmap.crs.CRSFactory.getCRS(Unknown Source)
com.iver.cit.gvsig.fmap.layers.FLyrWFSFactory.getFLyrWFS(Unknown
Source)     com.iver.cit.gvsig.gui.wizards.WFSWizard.getLayer(Unknown
Source)     com.iver.cit.gvsig.AddLayer.loadGenericWizardPanelLayers(Unknown
Source)     com.iver.cit.gvsig.AddLayer.addLayers(Unknown Source)
com.iver.cit.gvsig.AddLayer.execute(Unknown Source)
com.iver.andami.plugins.ExtensionDecorator.execute(Unknown Source)
com.iver.andami.ui.mdiFrame.MDIFrame.actionPerformed(Unknown Source)
  javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
javax.swing.DefaultButtonModel.setPressed(Unknown Source)
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown
Source)     java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
    java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
java.awt.Component.processMouseEvent(Unknown Source)
javax.swing.JComponent.processMouseEvent(Unknown Source)
java.awt.Component.processEvent(Unknown Source)
java.awt.Container.processEvent(Unknown Source)
java.awt.Component.dispatchEventImpl(Unknown Source)
java.awt.Container.dispatchEventImpl(Unknown Source)
java.awt.Component.dispatchEvent(Unknown Source)
java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
java.awt.Container.dispatchEventImpl(Unknown Source)
java.awt.Window.dispatchEventImpl(Unknown Source)
java.awt.Component.dispatchEvent(Unknown Source)
java.awt.EventQueue.dispatchEvent(Unknown Source)
com.iver.andami.ui.AndamiEventQueue.dispatchEvent(Unknown Source)
java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
   java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    java.awt.EventDispatchThread.pumpEvents(Unknown Source)
java.awt.EventDispatchThread.pumpEvents(Unknown Source)
java.awt.EventDispatchThread.run(Unknown Source)

I can load the same layers with other desktop GIS softwares.
Can you help to identify the error?

I'm using gvsig 1.1.2 (build 1045) on java 1.5.0_12, and Geoserver 1.7_RC1

Thanks,
Giovanni