[geotk] help on geotoolkit pending

[Ludji ATHENES]

Hello,
I am trying your demo name WidgetsDemo all work fine except when i want some 
information. after clicking on the information icon i've got this error :

Exception in thread "AWT-EventQueue-0" sun.misc.ServiceConfigurationError: 
org.geotoolkit.gui.swing.go2.control.information.presenter.InformationPresenter: 
Provider 
org.geotoolkit.gui.swing.go2.control.information.presenter.CoveragePresenterorg.geotoolkit.wms.map.WMSPresenterorg.geotoolkit.wms.map.WMSPresenter 
not found
	at sun.misc.Service.fail(Service.java:129)
	at sun.misc.Service.access$000(Service.java:111)
	at sun.misc.Service$LazyIterator.next(Service.java:273)
	at 
org.geotoolkit.gui.swing.go2.control.information.presenter.DefaultInformationPresenter.<clinit>(DefaultInformationPresenter.java:46)
	at 
org.geotoolkit.gui.swing.go2.control.information.InformationHandler.<init>(InformationHandler.java:54)
	at 
org.geotoolkit.gui.swing.go2.control.information.InformationAction.actionPerformed(InformationAction.java:52)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at 
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at 
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at 
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:273)
	at java.awt.Component.processMouseEvent(Component.java:6289)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
	at java.awt.Component.processEvent(Component.java:6054)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4652)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4482)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4482)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:644)
	at java.awt.EventQueue.access$000(EventQueue.java:85)
	at java.awt.EventQueue$1.run(EventQueue.java:603)
	at java.awt.EventQueue$1.run(EventQueue.java:601)
	at java.security.AccessController.doPrivileged(Native Method)
	at 
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
	at 
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
	at java.awt.EventQueue$2.run(EventQueue.java:617)
	at java.awt.EventQueue$2.run(EventQueue.java:615)
	at java.security.AccessController.doPrivileged(Native Method)
	at 
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:614)
	at 
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at 
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at 
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Can you tell me what is wrong with this demo ?
Best regards
Ludji ATHENES