j'ai cette erreur au demarrage de isis 4.4.0.2 snapshot qu est ce que ca signifie ?. merci java.lang.NullPointerException: Null child not allowed at javax.swing.tree.TreePath.pathByAddingChild(TreePath.java:327) at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.setParent(VariableHeightLayoutCache.java:1066) at javax.swing.tree.DefaultMutableTreeNode.insert(DefaultMutableTreeNode.java:187) at javax.swing.tree.DefaultMutableTreeNode.add(DefaultMutableTreeNode.java:411) at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1486) at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1288) at javax.swing.tree.VariableHeightLayoutCache.rebuild(VariableHeightLayoutCache.java:743) at javax.swing.tree.VariableHeightLayoutCache.setModel(VariableHeightLayoutCache.java:109) at javax.swing.plaf.basic.BasicTreeUI.setModel(BasicTreeUI.java:412) at javax.swing.plaf.basic.BasicTreeUI$Handler.propertyChange(BasicTreeUI.java:3414) at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263) at java.awt.Component.firePropertyChange(Component.java:8430) at javax.swing.JTree.setModel(JTree.java:882) at fr.ifremer.isisfish.ui.script.ScriptUI.$completeSetup(ScriptUI.java:1362) at fr.ifremer.isisfish.ui.script.ScriptUI.$initialize(ScriptUI.java:1480) at fr.ifremer.isisfish.ui.script.ScriptUI. (ScriptUI.java:195) at fr.ifremer.isisfish.ui.WelcomeTabUI.$initialize(WelcomeTabUI.java:415) at fr.ifremer.isisfish.ui.WelcomeTabUI. (WelcomeTabUI.java:123) at fr.ifremer.isisfish.ui.WelcomeHandler.afterInit(WelcomeHandler.java:99) at fr.ifremer.isisfish.ui.WelcomeUI.$afterCompleteSetup(WelcomeUI.java:96) at fr.ifremer.isisfish.ui.WelcomeUI.$completeSetup(WelcomeUI.java:583) at fr.ifremer.isisfish.ui.WelcomeUI.$initialize(WelcomeUI.java:754) at fr.ifremer.isisfish.ui.WelcomeUI. (WelcomeUI.java:109) at fr.ifremer.isisfish.IsisFish$3.run(IsisFish.java:719) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:726) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)