Bonjour à tous et merci d'avance à ceux qui essayerons de m'aider.

Voila j'ai programme en JSF pour faire des portlets que j'intègre dans le portail liferay.
j'ai voulus a l'aide de netbeans ajouter le framework richface a mon projet et il me sort cette erreur :

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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java.lang.NoClassDefFoundError: javax/swing/GroupLayout
	at org.netbeans.modules.richfacessupport.RichFacesVisualPanel.initComponents(RichFacesVisualPanel.java:30)
	at org.netbeans.modules.richfacessupport.RichFacesVisualPanel.<init>(RichFacesVisualPanel.java:17)
	at org.netbeans.modules.richfacessupport.RichFacesWebModuleExtender.getComponent(RichFacesWebModuleExtender.java:75)
	at org.netbeans.modules.web.project.ui.customizer.CustomizerFrameworks.valueChanged(CustomizerFrameworks.java:308)
	at javax.swing.JList.fireSelectionValueChanged(JList.java:1317)
	at javax.swing.JList$ListSelectionHandler.valueChanged(JList.java:1331)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:187)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:214)
	at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:408)
	at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:417)
	at javax.swing.DefaultListSelectionModel.setSelectionInterval(DefaultListSelectionModel.java:441)
	at javax.swing.JList.setSelectedIndex(JList.java:1732)
	at javax.swing.JList.setSelectedValue(JList.java:1834)
	at org.netbeans.modules.web.project.ui.customizer.CustomizerFrameworks.jButtonAddActionPerformed(CustomizerFrameworks.java:260)
	at org.netbeans.modules.web.project.ui.customizer.CustomizerFrameworks.access$200(CustomizerFrameworks.java:73)
	at org.netbeans.modules.web.project.ui.customizer.CustomizerFrameworks$2.actionPerformed(CustomizerFrameworks.java:165)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.Component.processMouseEvent(Component.java:5517)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
	at java.awt.Component.processEvent(Component.java:5282)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3984)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3819)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
	at java.awt.Container.dispatchEventImpl(Container.java:2010)
	at java.awt.Window.dispatchEventImpl(Window.java:1791)
	at java.awt.Component.dispatchEvent(Component.java:3819)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
sachant que j'ai intégré ces fichiers a netbean avant de pouvoir ajouter richface :
-1239456270724_org-netbeans-modules-richfacespalette.nbm
-org-netbeans-modules-richfaceslibrary.nbm
-org-netbeans-modules-richfacessupport.nbm

Quelqun aurait t'il une idée d'ou sa pourrait provenir?